- test-drb@ccmp.vtda.org - classiccmp.org

by rhblake＠bbtel.com

*Microsoft Windows 3.0 package - Factory sealed, new. Complete with manual and 5 5.25" 1.2mb disks. Can make additional 1.44mb copies to accompany if you don't have a 5.25" drive. I have 2 of these left. Microsoft Windows 3.1 User's Manual - 650 pgs, complete reference to Windows 3.1. I have 2 of these left. Any of the above items are $15 each and include shipping in the lower 48 states. They may not last long so email me soon. -------------------------------------------------------------------- Russ Blakeman RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144 Phone: (502) 756-1749 / Data/Fax:(502) 756-6991 Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com Website: http://members.tripod.com/~RHBLAKE/ * Parts/Service/Upgrades and more for MOST Computers* --------------------------------------------------------------------

28 years, 1 month

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Wanted stuff (and a donation for schools) (Was: Pretty good week)

by photze＠batelco.com.bh

>Have a Mac 512k system complete with manuals, software, printer, mouse, keyboard >for $75 plus shipping. Works great but needs to have the 400k floppy changed as >it's getting a little sloppy. Otherwise it works great and parts are available >for it as easy as for PC's. It's a friends machine and she put over $1500 into >this unit only 8 yrs ago and has been the only owner. OK, right now, I'm in an Apple ][ mode. ;-) >Have a Quantum 80mb 3.5" IDE hard drive for $30 which includes shipping. I'll >include the specs/settings sheet. Ran into that problem before. I want this machine working, but I can't (legally) pay for anything. So, back to square 1... Thanks, Tim D. Hotze

28 years, 1 month

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PS/2 55SX motherboards

by rhblake＠bbtel.com

Have a bunch of PS/2 model 55SX motherboards in the "Reply" boxes in great condition for sale or trade. Will sell separately for $25 each or will work a better price for multiples. I'll also trade for equal value of cdroms, sound cards, parity SIMMs in 30 or 72 pin for other machines I'm working on. Of course shipping is extra but these are light. -------------------------------------------------------------------- Russ Blakeman RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144 Phone: (502) 756-1749 / Data/Fax:(502) 756-6991 Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com Website: http://members.tripod.com/~RHBLAKE/ * Parts/Service/Upgrades and more for MOST Computers* --------------------------------------------------------------------

28 years, 1 month

1
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What is this? XEROX 820

by allisonp＠world.std.com

<I found a XEROX 820 in a trift store today. Can anyone tell me what it is <It has a base unit with a built in monitor. It has four ports on it. One <connects to a daul 5 1/4" disks drives in an external box. Another connec <to a separate keyboard. The other two are for a serial port and printer p Z80 based CP/M engine. When xerox got out they sold off the stocks of boards and they were the hackers joy. Allison

28 years, 1 month

2
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Pretty good week

by maxeskin＠hotmail.com

I run Minix on my 386 (or at least have it installed). In my case, version 2.0 which seems to be the latest. I don't think it's a good idea to run it in 128K, though. I use the 386 version, however, so I wouldn't know. What about Xenix? Also, what is prime time? You aren't planning to start your own ISP with this, are you? > >Here, take my 10 year old copy of Minix. BTW, is anybody up to speed on >the current state of Minix? I have an itch to run *ix on a 128K 8086 box, >and it doesn't look like ELKS is ready for prime time. > >-- Doug > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

1
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Creativision

by adavie＠mad.scientist.com

I've fired up a page on my Creativision home computer. You can select it off the main menu at http://www.comcen.com.au/~adavie/weird/ Or, if you want to skip the menu and other computers, you can visit direct at http://www.comcen.com.au/~adavie/weird/creativision.html Enjoy! A

28 years, 1 month

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Classic computers on Jeopardy?

by dastar＠wco.com

What was Friday nights Jeopardy question in the catgeory "1980's" having to do with Radio Shack? I forgot what the question was but it was something about Radio Shack and the answer was "computer". Sorry, had to know as I missed this by walking away to check on dinner. Sam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass Coming Soon...Vintage Computer Festival 2.0 See http://www.siconic.com/vcf for details!

28 years, 1 month

1
0
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Pretty good week

by fmc＠reanimators.org

"John R. Keys Jr." <jrkeys(a)concentric.net> wrote: > My best find was free card called a SYNPHONIX Electronic Speech > Articulator model 100 by a company called Artic Technologies with a date > 1985 on it. Does anyone have any more info on this card such as is for a pc > or apple, any special software needs ? Thanks and keep on computing --> Artic Technologies makes (at least I think they are still around, they were a year or so ago) devices that talk. I've seen them in operation because one of my co-workers is blind and needs that sort of thing to use her computer. That said, I think one of the devices she has is an ISA card with the SYNPHONIX legend on it. It has an ISA back plate with a headphone jack and (I think) a volume control knob poking through. There is also a speaker on the card that can make itself heard over the fan and through the case. It's been a while since I've seen this one (she used it briefly in 1995-1996, I think she keeps it as a spare) and I've no idea whether they also made any Apple-flavored devices. Until recently she used a serially-attached talking box, also from Artic. Now she is using software that can use the sound card in her PC (it previously used the Artic box but she prefers to not carry extra bits around). Regarding software, from what I've seen of the Artic software, it is copy-protected and uses the Artic talker as a serialized dongle. The new software (from another company) has a key disk that lets you install the authorization on the hard disk, sort of like the old Lotus 1-2-3 v2.0 copy protection. Hope this helps, -Frank McConnell

28 years, 1 month

2
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What a concept! Was: Thinkpad 700/720 series HDD's

by jpero＠cgo.wave.ca

Hi all, just to add spice to this list. I would'nt do business with that if this business keeps up like this. Common experience anyone? The question is clearly presented to this guy. (!!) Jason D. ------- Forwarded Message Follows ------- Date: Fri, 27 Feb 1998 12:34:15 -0500 To: "Jaoson D. Pero" <jpero(a)cgo.wave.ca> From: John Purdy <jpurdy(a)amgupgrades.com> Subject: Re: Thinkpad 700/720 series HDD's At 12:03 PM 2/27/98 -0500, you wrote: Hi, I would like a price quotes on these two: 340mb and 810mb and is it user-installable? Thanks! Jason D. Thank you for visiting the AMG Web site. All requests for memory pricing are responded by the AMG representative who covers your state. By reply eMail could you provide us that information? Many thanks, and we look forward to working with you on this and other upgrades as they are needed. AMG, Inc. email: jpero(a)cgo.wave.ca Pero, Jason D.

28 years, 1 month

4
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Walnut Creek CP/M CDROM Discontinued

by allisonp＠world.std.com

<Tim, I am unable to find the Ampro Little Board BIOS source. There <are some utilities, patches, and such in source form and a text <reference to a file 38BIOS.LBR (in the JSAGE area), but I cannot <locate the file itself. Can you cite directory pointers, please. Don, It's in the .lbr file like many items in the collection they are either arc/ark/lzh/lbr/zip or whatevered into compacted libraries. Because it's compacted it makes finding an individual file real tough. If you can't find them (they are there) let me know I have them on line. Allison

28 years, 1 month

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Walnut Creek CP/M CDROM Discontinued

by allisonp＠world.std.com

<erm, isn't the walnut creek cd-rom predominantly stocked with the same <stuff that is on oak? which kind of implies that so long as you aren't <doing it for profit, it's just another kind of distribution. you <probably couldn't duplicate the walnut creek packaging without getting <copyright sorted, but if you just reassemble the content without <duplicating form (or necessarily even providing any) that shouldn't <infringe anyone's copyright. About 95% can be found out on the net at OAK and simtel among others. I'm sure some even have the CDrom on line. There may be a few peices that are unique to the cdrom like the viewer/search tools but the rest are PD or shareware. As to assembling another there are ways to organize things to make hem easier to find when they are embedded in compacted collections. Allison

28 years, 1 month

1
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Wanted Stuff

by maxeskin＠hotmail.com

[Commodore PSU] I had a C64 before, and the PSU worked fine. Then I fried the C64, but kept everything but the actual machine ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

1
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Walnut Creek CP/M CDROM Discontinued

by jfoust＠threedee.com

Walnut is a CD publisher. Unless they assembled the disc themselves, then someone else assembled the data and may own the (collection copyright) rights to reproduction of new CDs. Of course, they may be looking for a new publisher, or may try to publish it themselves. Walnut probably dropped it for lack of sales. They like to see at least 1,000 copies sold a month. If you own a copy of the old CD, check the credits and I'm sure you can track down the creator. Or ask Walnut Creek. They might tell you. It's more cost-effective and less risky these days to do short-run CDs on CD-R. Still, all-told you can get 1,000 "real" CDs for $800-$1,500, depending on which options you want. - John Jefferson Computer Museum <http://www.threedee.com/jcm>

28 years, 1 month

4
4
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Wanted stuff (Was: Pretty good week)

by pete＠dunnington.u-net.com

On Feb 27, 21:32, lisard(a)zetnet.co.uk wrote: > Subject: Wanted stuff (Was: Pretty good week) > an original archimedes, with the original arthur os and the gui in basic Well, as mentioned in another message, I've got the machine (not for sale :-)) and probably the ROMs. I could certainly copy the "Welcome" disk. But for those who don't already know, the "gui" was really just a small collection of demo programs that sat on top of the O/S, and wasn't terribly functional. -- Pete Peter Turnbull Dept. of Computer Science University of York

28 years, 1 month

1
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Osborne Executive

by adavie＠mad.scientist.com

I have the opportunity to get one - cosmetics OK, operation dubious - for $60. Is this machine (Osborne Executive) worth picking up, or relatively common? Thanks A

28 years, 1 month

3
2
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Circuit cellar

by maxeskin＠hotmail.com

I found compilation VII of Circuit cellar, one from 1986 to 1990 at the library. Does anyone have "extra" copies of the other ones (though I don't have all 1986-1990 anyway) that they could give me for less than the reprints/backissues? ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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Wanted stuff (Was: Re: Pretty good week)

by maxeskin＠hotmail.com

My only predicament being that the next day, I will wander into a thrift store that is selling them for $3 a piece. No, I meant like stuff that someone would want essentially to throw away to me :) BTW, are those 64's the brown or the white ones? Do they come with boxes, manuals, etc? > >Max Eskin wrote: > >> -A Commodore 64,128,128D (I have all the stuff for the 64 except the >> actual unit. I even have a PSU) >> >> I know most of this stuff isn't much to you people, but I wouldn't mind >> them :) > >I have C64's with power supplies for $15 a set plus shipping. To Mass it >should be roughly $5 to ship USPS. These are near -new machines that were >excess to a local school, never used and they've gone to Win95 and Pentiums >now. > >A also have like new 1541 drives as well, $10 plus shipping. If you were to >get a drive, C64 and power supply togehter I'd go $20 for the set plus >shipping. Of course shipping is a little more since the 1541 is 10 lbs by >itself. I clear around $1.50 on a set like this but they are in my way so >I'd rather break even than step over the boxes of them for the next year. > >> -------------------------------------------------------------------- > > Russ Blakeman > RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144 > Phone: (502) 756-1749 / Data/Fax:(502) 756-6991 > Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com > Website: http://members.tripod.com/~RHBLAKE/ > > * Parts/Service/Upgrades and more for MOST Computers* > -------------------------------------------------------------------- > > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

1
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Wanted stuff (Was: Re: Pretty good week)

by maxeskin＠hotmail.com

I live in Massachussetts. We have plenty of mediocre PCs, half the time I don't bother. I see mostly XTs at thrift stores, recently I saw a Compaq Portable. I didn't bother with a Mac 512K, and missed out on an SE and LC. If any of you see any machines that are not too big, please ship them to me. I will pay shipping and a few bucks extra. I am interested in most non-PC or Mac stuff. On my wanted list are: -Any model Amiga -A Commodore 64,128,128D (I have all the stuff for the 64 except the actual unit. I even have a PSU) -A SMALL Unix station, including NeXT -Portables, PC or Z80 -Not sure how big a MicroVAX is, but if it is what the name implies (wasn't it just a tower?), then by all means -Maybe a CoCo if it has a disk drive I know most of this stuff isn't much to you people, but I wouldn't mind them :) >so many that I have to pick and choose. I left behind 4 AT&T 3B2s, a >NeXt, an AT&T 6300, 2 HP Appollos and 2 HP 9000/300s yesterday. All >of that was at a GSA auction at KSC. I did get a COMPLETE Commodeore >Pet set and a Vax Station 3100 for Zane. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

3
3
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Walnut Creek CP/M CDROM Discontinued

by lisard＠zetnet.co.uk

seth: :If it turns out that this product has been completely discontinued, :and is no longer being sold, I can easily make a copy of mine for :anyone who needs one, just for cost of materials. :Note, however, that I'm not talking about piracy here :) I'd only erm, isn't the walnut creek cd-rom predominantly stocked with the same stuff that is on oak? which kind of implies that so long as you aren't doing it for profit, it's just another kind of distribution. you probably couldn't duplicate the walnut creek packaging without getting copyright sorted, but if you just reassemble the content without duplicating form (or necessarily even providing any) that shouldn't infringe anyone's copyright. -- Communa (together) we remember... we'll see you falling you know soft spoken changes nothing to sing within her... Net-Tamer V 1.08X - Test Drive

28 years, 1 month

1
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80-Micro magazine??

by archive＠navix.net

Hello: Do any of you know if there are any on-line references to the old 80-Micro magazine that was published by Wayne Green back in the 80s hayday of the TRS-80 computer? Do any of you have any collections of this magazine for sale? Thanks, CORD COSLOR -- ___________________________________________________ | Cord G. Coslor : archive(a)navix.net |\ | Deanna S. Wynn : deannasue(a)navix.net | | |---------------------------------------------------| | | http://www.geocities.com/SiliconValley/Vista/4395 | | |---------------------------------------------------| | | PO Box 308 - Peru, NE - 68421 - (402) 872- 3272 | | |___________________________________________________| | \____________________________________________________\|

28 years, 1 month

2
3
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Modern Minimalism (Was: Future Computing Trends)

by IVIE＠cc.usu.edu

Mike Allison wrote: > SHELL= > or > AUTOEXEC.BAT line to execute the program > or > REXX script > or > A program which bootstraps the other program. An AUTOEXEC.BAT line to execute the program does not let you omit COMMAND.COM, which is what was asked for. SHELL= does. Roger Ivie ivie(a)cc.usu.edu

28 years, 1 month

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Modern Minimalism (Was: Future Computing Trends)

by IVIE＠cc.usu.edu

> Most of the questions ELKS must now answer, as a UNIX clone, have > been answered in CPM as a stand alone solution. Plus there's a boat > load of free programs. Bear in mind that most of the free programs are written in 8080 or Z80 assembler; they're not going to move to something else readily, if at all. > BTW - Roger, > Where are you at? I'm in Ogden... Logan. > You're not related to Joni are you? The name doesn't ring a bell. My immediate family is from the Duchesne area. I have a half-brother living in the Ogden area (Gerry Ivie). > (Everyone in Utah is related ; - } ) Definitely the case for us bearing the name 'Ivie'. AFAIK, all the 'Ivie's in the US (including the 'Ivey's; there was some confusion about the spelling a while ago) are related. Roger Ivie ivie(a)cc.usu.edu

28 years, 1 month

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Modern Minimalism (Was: Future Computing Trends)

by IVIE＠cc.usu.edu

> What would be nice is an ELKS-like thing for DOS, so that one could > stick in a floppy disk, and it would boot into any program that you > choose, without Command.Com. You can already do this using SHELL= in CONFIG.SYS. I did this many years ago (more than 10, OK? (Have I really been puting up with MS-DOS that long?)) to make a diskette that booted directly into WordStar. Roger Ivie ivie(a)cc.usu.edu

28 years, 1 month

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Modern Minimalism (Was: Future Computing Trends)

by IVIE＠cc.usu.edu

> I think Linux is the best choice to enable latter day retrocomputing. > Check out the ELKS project to put Linux on machines with very limited > resources: On the other hand, CP/M-68K is available from http://cdl.uta.edu/cpm/. A lot of it is written in C; with some work, it can be modernized and updated. What could be more retro than building the ability to port CP/M to anything with a C compiler? Roger Ivie ivie(a)cc.usu.edu

28 years, 1 month

2
1
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6502 Books (was: Mac hi-res monitor)

by foxnhare＠goldrush.com

From: Aaron Christopher Finney <A_Finney(a)wfi-inc.com> Subject: Re: Mac hi-res monitor >While I'm here, I am desperately searching for books on 6502 Assembly, >especially.... [snip] >"6502 Assembly Language Programming" by Lance Leventhal >Osborne/McGraw-Hill You would also want to look for O/MGH's "6502 Assembly Language Subroutines" by Lance Leventhall as well as Winththrop Saville. The first section contains an excellent overview of the 6502 command set, it's quirks (such as not placing indirect reference commands near page boundries etc. Not to mention the rest with routines for interger and floating point math, string manipulation, sorting, etc.) The routines are fairly generic so it would not be hard to implement on any 6502 machine. I'd consider that and 6502 Assembly Language Programming well worth the effort to find. Larry Anderson -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare/ Call our Commodore 64 BBS (Silicon Realms 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

28 years, 1 month

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Is the RL02 cable straight-through?

by DSEAGRAV＠toad.xkl.com

I have to remake an EL02 cable (Or at least the board > bulkhead part) for this to work. (This being the RL02) Is it a straight through cable? -------

28 years, 1 month

4
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CLASSICCMP digest 338

by foxnhare＠goldrush.com

From: "Lawrence Walker" <lwalker(a)mail.interlog.com> Subject: Re: TRS-80 Questions On 24 Feb 98 at 21:27, Tony Duell wrote: >> > 2. Included with a TRS CoCo 1 I picked up last summer was >> > an adapter plugged into the cass.port. a label "TotalCommunications" >> > on one side and "Telelearning" on the other. Into this was plugged >> > another M/M adapter labelled " RS232 Gender Changer" Was this for >> > hooking up a fdd and/or modem ? >> >> My guess, and it's only a guess is that this is some kind of kludge to >> allow you to CLOAD (and maybe CSAVE) programs to/from an RS232 device. It >> may have been part of one of those classroom 'networks' where the teacher >> loaded a program onto his machine, all the pupils typed CLOAD, the >> teacher typed CSAVE and the program was downloaded onto all the pupils' >> machines. >> > Now that seems like it has possibilities . And it takes up so >little room ! It is more than likely a modem or parts to one. On the Commodore 64 the Total Telecommunications Modems are very well known (because they were VERY cheap and good quality Commodore 1650 clone direct-connect auto-answer 300 baud modem) I ran my BBS on one for years.. My assumtion is that the Telelearning project (which, from my book, looks like a Compuserve, Q-Link or similar on-line network geared for education) failed miserably and all the modem/software packs were sold at pennies to the dollar. I thought there were just Total Telecomm modems out there.... I wonder what other computers that made modems for. Larry Anderson -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare/ Call our Commodore 64 BBS (Silicon Realms 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

28 years, 1 month

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Pretty good week (Where to find stuff)

by adam＠merlin.net.au

>> Better question is where they FIND them, I have plenty of room and my wife is >> mostly understanding. Well, in the way that an antelope understands linear >> algebra anyway. I recently tried advertising in a national computer "for sale" magazine. This worked very well, but I don't know if it would work so well outside of Australia. Huge numbers of offers, some of which were really good - but they came from all over Australia, and many were either XTs or other boring computers, or situations where people really belived they had a wonderful collectors items, and thus asked 3 or 4 times what I considered their worth. Adam.

28 years, 1 month

2
1
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Zenith Inteq

by Marty＠itgonline.com

Doug, I used to repair tempested Zenith Inteq 248 machines in the late 1980's. As mentioned earlier, the 16 bit boards were all isolated in the chassis and had cables run through a dead space to the external connectors. All boards have rfi suppression coils built in and of course there is a rfi suppression braid gasket running the entire circumference of the main system unit, if I recall there were about thirty-six to forty screws holding the cover on. The keyboard was tempested as well as the color monitor, both of these being very heavy in comparison to a untempested Z-248 system. I ran service calls out at the Vint Hill Farms Army base (near Warrenton, Virginia) to service these and always found it strange to have a tempested unit in a shielded building in a bank vault. Yes they used Syquest 10MB removeable disks. Also, whenever we had one of these units in our shop for repair (off base), prior to it being placed back in service, security would use an rfi sniffer prior to acceptance to ensure there was no leakage. I found a complete Zenith Inteq 248 with tempested color monitor and keyboard at a church sale a few years ago. I regretfully broke the rfi qa seal on the system unit and removed the cmos battery (AA lithium) as I was afraid it would leak and damage the system unit as I was tucking it away (until I find space to display it). When I broke the seal, I documented the date and reason why and placed this note inside the system unit so as to document its history. The system booted fine. Built like a tank. Marty Mintzell ______________________________ Reply Separator _________________________________ Subject: Re: Zenith Inteq Author: classiccmp(a)u.washington.edu at internet Date: 2/26/98 11:08 PM Doug Yowza wrote: > On Thu, 26 Feb 1998, Mike Allison wrote: > > > My experience with these "TEMPEST" machines is that it's usually best to > > swap out all the parts (great difficulty at times) and use the AT parts > > in another box. The box is heavy and, as you stated, designed to > > firewall the parts from the actual physical ports. There are good parts > > on them however, disk drives, scsi connectors, video cards, mother > > boards, memboards, that would work nice in another box and be easier > > (read that cheaper) to mail. "TEMPEST" standards are there to afford proper sheilding to prevent radiations/emmisions fromt he machine when it's being used for security information. The thicker covers, ground braids and multiple screws in the covers make it better sealed and there should be no emmisions over 12 inches from the machine, or none at all ideally. Other than the power supply being a class A type, the rest is normal but may have been refitted with a shielded faceplate. -------------------------------------------------------------------- Russ Blakeman RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144 Phone: (502) 756-1749 / Data/Fax:(502) 756-6991 Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com Website: http://members.tripod.com/~RHBLAKE/ * Parts/Service/Upgrades and more for MOST Computers* -------------------------------------------------------------------- ------ Message Header Follows ------ Received: from lists2.u.washington.edu by smtp.itgonline.com (PostalUnion/SMTP(tm) v2.1.9i(b5) for Windows NT(tm)) id AA-1998Feb26.230809.1767.29101; Thu, 26 Feb 1998 23:08:09 -0500 Received: from host (lists.u.washington.edu [140.142.56.13]) by lists2.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with SMTP id UAA29024; Thu, 26 Feb 1998 20:02:44 -0800 Received: from mxu4.u.washington.edu (mxu4.u.washington.edu [140.142.33.8]) by lists.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with ESMTP id UAA24610 for <classiccmp(a)lists.u.washington.edu>; Thu, 26 Feb 1998 20:02:37 -0800 Received: from bnllc2.blue.net (bnllc2.blue.net [206.65.217.254]) by mxu4.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.09) with ESMTP id UAA07557 for <classiccmp(a)u.washington.edu>; Thu, 26 Feb 1998 20:02:36 -0800 Received: from bbtel.com (brand231.blue.net [206.65.221.231]) by bnllc2.blue.net (8.8.5/8.8.5) with ESMTP id WAA05034 for <classiccmp(a)u.washington.edu>; Thu, 26 Feb 1998 22:03:30 -0600 (CST) Message-Id: <34F63CAA.D1049E27(a)bbtel.com> Date: Thu, 26 Feb 1998 22:10:18 -0600 Reply-To: classiccmp(a)u.washington.edu Sender: CLASSICCMP-owner(a)u.washington.edu Precedence: bulk From: Russ Blakeman <rhblake(a)bbtel.com> To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu> Subject: Re: Zenith Inteq References: <Pine.LNX.3.95.980226214359.11741A-100000(a)behemoth.host4u.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN

28 years, 1 month

1
0
0 0

Pretty good week

by A_Finney＠wfi-inc.com

I'm lucky, in that I sit in a nice, big computer dungeon at work that the bosses seem to not care about much. Either that or they can't tell the difference between the new Digital NT boxes and the Vaxen.... ;) At 07:26 AM 2/27/98 -0500, you wrote: ><><< Geez, where do you guys keep all these computers??? >> > >4bedrooms and the computer room is the smallest and also my office. That >limits me to 150sqft or about 1000cuft inside the house. The garage >is also huge (and resonably warm in the winter) so a fair amount it out >there too. > >< Yeah, it's easier to give up the wife and kids and to keep the ><computers. A lot quieter too. > >Forget kids, I am the wife! > >Allison > >

28 years, 1 month

1
0
0 0

Pretty good week

by allisonp＠world.std.com

<><< Geez, where do you guys keep all these computers??? >> 4bedrooms and the computer room is the smallest and also my office. That limits me to 150sqft or about 1000cuft inside the house. The garage is also huge (and resonably warm in the winter) so a fair amount it out there too. < Yeah, it's easier to give up the wife and kids and to keep the <computers. A lot quieter too. Forget kids, I am the wife! Allison

28 years, 1 month

1
0
0 0

Osborne Executive

by cgregory＠lrbcg.com

Although it is very clean and included all the manuals and software, I paid twice that for my Executive. Cliff Gregory cgregory(a)lrbcg.com -----Original Message----- From: classiccmp(a)u.washington.edu <classiccmp(a)u.washington.edu> To: Cgregory <Cgregory> Date: Friday, February 27, 1998 6:56 AM Subject: Osborne Executive > >I have the opportunity to get one - cosmetics OK, operation dubious - for >$60. >Is this machine (Osborne Executive) worth picking up, or relatively common? >Thanks >A > >

28 years, 1 month

1
0
0 0

More Parts for sale

by rhblake＠bbtel.com

In addition to the previous message today, I also have an original Tandy 1000 (no suffix) that can go a number of ways: Main unit with 640k ram (expansion card), 2 360k floppies, keyboard...$25 plus shipping Main unit with 640k ram (expansion card), NO floppies, keyboard ........$18 plus shipping Main unit with basic ram (no expansion), NO floppies, keyboard...........$ 15 plus shipping The shipping weight is dependant upon the way it gets sold. Buy the complete unit ($25 plus s/h) and I'll throw in a Tandy joystick. As to the items I'll have left, that depends on how the unit gets sold. -------------------------------------------------------------------- Russ Blakeman RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144 Phone: (502) 756-1749 / Data/Fax:(502) 756-6991 Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com Website: http://members.tripod.com/~RHBLAKE/ * Parts/Service/Upgrades and more for MOST Computers* --------------------------------------------------------------------

28 years, 1 month

1
0
0 0

Zenith Inteq

by archive＠navix.net

p.s. these computers mentioned in a previous post also have video cards that support both VGA and RGB monitor graphics. CORD -- ___________________________________________________ | Cord G. Coslor : archive(a)navix.net |\ | Deanna S. Wynn : deannasue(a)navix.net | | |---------------------------------------------------| | | http://www.geocities.com/SiliconValley/Vista/4395 | | |---------------------------------------------------| | | PO Box 308 - Peru, NE - 68421 - (402) 872- 3272 | | |___________________________________________________| | \____________________________________________________\|

28 years, 1 month

4
3
0 0

Pretty good week

by jrkeys＠concentric.net

So far the week has been good a few finds are; digital VT240 model VS240-B untested; HP Laserjet II has a paper feed problem; Chameleon luggable not tested yet; AST Premium 386/33 not tested yet; Tektronix KB pn 119-1592-02has built mouse pad; Apple IIe mouse; variuos books and manuals; a number of different cables; Sun 3/60 not tested yet; a large number of parts for apples, digital, pc, trs-80 and others. My best find was free card called a SYNPHONIX Electronic Speech Articulator model 100 by a company called Artic Technologies with a date 1985 on it. Does anyone have any more info on this card such as is for a pc or apple, any special software needs ? Thanks and keep on computing --> John

28 years, 1 month

2
1
0 0

Mac hi-res monitor

by SUPRDAVE＠aol.com

if you could estimate on the shipping charges to nc, i can let you know asap if i still want it. david In a message dated 98-02-26 11:55:09 EST, you write: << Are you still interested? At 10:56 AM 2/11/98 EST, you wrote: >yes! i need one! glad to pay shipping to nc. is it available? > >david > > >In a message dated 98-02-10 15:25:34 EST, you write: > ><< Does anyone need a Mac mono monitor? Model number MO400, circa 1987. Best > offer takes it, no matter how pathetic. Recipient either pays shipping or > picks it up in the LA area (it's not heavy at all, I can't imagine that ups > ground would be more than a few bucks on this thing). >> > >>

28 years, 1 month

1
0
0 0

Pascal System

by fmc＠reanimators.org

Mike Allison <mallison(a)konnections.com> wrote: > This is the UCSD P System which means that there is no way to copy it to > the HD as this _IS_ the operating system. This is the one in the sort of peach-colored IBM binders with slipcases, right? I had a copy of that a few years back (gave it to an interested friend back east). While I had it I made some observations. The manuals didn't mention hard^H^H^H^Hfixed disks at all. They also seemed to indicate that diskettes held about 160KB (i.e. no knowledge of double-sided disks). And it didn't want to boot on anything I had access to except the Panasonic Business Partner in the QA lab at work -- I'm not sure whether it objected to 80x86s for x>=2, clock speeds > 4.77 MHz, or what. -Frank McConnell

28 years, 1 month

2
1
0 0

Cliff Gregory

by manney＠lrbcg.com

Cliff, would you please e-mail me again? My profram swallowed your note. manney(a)lrbcg.com "Would a skinny ballerina wear a one-one?"

28 years, 1 month

1
0
0 0

Mac hi-res monitor

by A_Finney＠wfi-inc.com

Sorry, didn't mean to send this to the list. My apologies.... At 08:56 AM 2/26/98 -0800, you wrote: >Are you still interested? While I'm here, I am desperately searching for books on 6502 Assembly, especially.... "6502 Programming Manual" SYNERTEK or MOS Technology "6502 Assembly Language Programming" by Lance Leventhal Osborne/McGraw-Hill "Programming the 6502" by Rodney Zaks Sybex ....but any books would be considered. Cheers, Aaron

28 years, 1 month

3
2
0 0

Pascal System

by peacock＠simconv.com

Mike wrote: >I have an IBM Pascal System for the PC >Does anyone know if it's possible to use a hard drive with this system? > >There are no references and no seeming commands for manipulating >storage.... > >Ideas?? UCSD pascal? I never used the IBM version but the S-100 version had a way to add device drivers for hard drives ( I recall doing that to add in hard drive support for UCSD on DYNABYTE S-100 boxes). Vague on this, but the drivers were very low level, block read/write like in CP/M. If the IBM version allows for it, you should be able to do a small driver that just makes ROM BIOS calls for the hard drive.

28 years, 1 month

5
6
0 0

Altair 8800 pc cards

by altair8800＠hotmail.com

I was surfing the listings on the eBay auction and ran across these two Altair 8800 cards if anyone is interested. The bid was considerably lower than the ones sold last week. Here are the links... http://iguana.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=6903309 http://iguana.ebay.com/aw-cgi/eBayISAPI.dll?ViewItem&item=6874386 BW ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

1
0
0 0

Zenith Inteq???

by archive＠navix.net

Is anyone interested in a Zenith Inteq computer? I have four available. They were used by the U.S. government and are heavily 'shielded' computers. They contain a 286 on a daughter-board, not sure how the motherboard is. Also have 2 360k floppy drives and one internal 10 meg Seaquest tape backup drive in it. Also have a bunch of tapes. Interestingly, there is a buffer on the back, meaning everything that plugs into the ports on the back, actually go through about a 4 inch buffer cable into the actual ports. These things are heavy, and fairly large. Please send any offers my way. Remember, I do have four of these units available... all in working condition. Thanks, CORD COSLOR -- ___________________________________________________ | Cord G. Coslor : archive(a)navix.net |\ | Deanna S. Wynn : deannasue(a)navix.net | | |---------------------------------------------------| | | http://www.geocities.com/SiliconValley/Vista/4395 | | |---------------------------------------------------| | | PO Box 308 - Peru, NE - 68421 - (402) 872- 3272 | | |___________________________________________________| | \____________________________________________________\|

28 years, 1 month

1
0
0 0

Apple Koala pad drivers

by manney＠lrbcg.com

Does anyone have the (Apple) Koala Pad driver disk? One of my customers has a bad disk. Thanks, manney(a)lrbcg.com Would a skinny ballerina wear a one-one?

28 years, 1 month

2
1
0 0

Parts for sale

by rhblake＠bbtel.com

I have the following items for sale (possible trade) TRS-80 model 4 - this unit is nearly functional but I'm comsidering parting it out. It has a great motherboard, power supply, video section, floppy drives. The keyboard is damaged in that two keys are broken and it needs the ram changed due to a bad chip. If someone wants the entire thing they can have it for $15 plus shipping (42 lbs shipping weight). I'd take 4 1meg parity 30 pin SIMMs for it plus shipping as well. I want to see if I get any responses on the entire unit before I decide to split it up. Commodore 64 (older style, not 64C) - I have a bunch of these units, in working condition. I'll sell a 1541 drive, C64 and power supply (no cables) for $20 plus shipping. The entire unit weight is roughly 20 lbs. Commodore printers - I have various Commodore printers for sale as well. Drop me a line if interested. Apple ImageWriter II (color) printer - great condition, with 25 pin to 8 pin cable. $30 plus shipping. Apple external 5.25" floppy drives - like new set of two. One marked drive 1 and the other drive 2. Serial cables are attached. $30 for the set of two plus shipping. Mac 512k set complete - Original Mac 512k with 400k internal floppy, software, manuals, color thermal printer. Needs an alignment or replacement on the floppy drive. Instructions on upgrading the memory to 1mb using stacked DRAMs included. $90 plus shipping for all of it. Panasonic Sr. Partner 8088 "portable" computer. 512k ram, Two 5.25" floppies, green composite crt. All original except printer was removed. Otherwise a great machine. One open 8 bit expansion slot. $50 plus shipping (approx 25-30 lbs). Original IBM 5150 PC - original IBM keyboard, original IBM mono monitor. Terrific condition, floppy based. $50 plus shipping I also have SLOUGHS of various older parts for PS/2's and other older machines to include MFM, ESDI, IDE hard disks, half and full height floppies, option cards, network cards, yada, yada, yada...Drop me a line if you're looking for something. While this is a "business" it's actually a formalized part time hobby for me to pick up a few bucks with a hobby. I keep my prices as reasonable as possible so that the old "relics" can keep on going, and going, and going...... -------------------------------------------------------------------- Russ Blakeman RB Custom Services / Rt. 1 Box 62E / Harned, KY USA 40144 Phone: (502) 756-1749 / Data/Fax:(502) 756-6991 Email: rhblake(a)bbtel.com or rhblake(a)bigfoot.com Website: http://members.tripod.com/~RHBLAKE/ * Parts/Service/Upgrades and more for MOST Computers* --------------------------------------------------------------------

28 years, 1 month

2
1
0 0

Walnut Creek CP/M CDROM Discontinued

by jrbrady＠mindspring.com

Thanks...I've already e-mailed Dave Baldwin. I'm a TCJ subscriber (as everyone on this list should be...!) I also e-mailed the CP/M FAQ coor- dinator with the [sad] news. Damn, another resource gone the way of the Compaticard. Regards, Jason Brady jrbrady(a)mindspring.com Seattle, WA >Date: Thu, 26 Feb 1998 06:27:57 GMT >From: toucansam9(a)juno.com (Leo M. Cavanaugh III) >To: classiccmp(a)u.washington.edu >Subject: Re: Walnut Creek CP/M CDROM Discontinued > >On Wed, 25 Feb 1998 18:00:09 -0600, you wrote: > >>The Computer Journal used to carry this CD. Try at http://www.psyber.com/~tcj/

28 years, 1 month

2
1
0 0

IBM S/36 emulator for Linux anyone?

by dwollmann＠ibmhelp.com

Would anyone be interested in working on an IBM S/36 emulator for Linux? I'm not a S/36 guru, but I have several, one 5363 up and running and about 10 years of experience hacking C (please don't throw any gimpelesque C programming problems at me, I'm not up for it right now <g>). I'm not ready to roll yet, but if anyone's interested I can start gabbing about it and collecting info. I want to install and play with a couple of the emulators that are floating around out there as well as collect information on the instruction set, etc. As far as periphs are concerned, we can get lift the OS (SSP) and microcode (if it's even needed) off a 5.25" set of the distribution diskettes from a standard PC floppy drive. I don't even want to think about 8", although it could be done with the the Microtech FDC and a driver. Just a thought. Dave Wollmann dwollmann(a)ibmhelp.com

28 years, 1 month

1
0
0 0

Provenance and lineage

by Marty＠itgonline.com

Allison, I agree. Find an original classic and bring it back to life. But this is my subjective viewpoint (as well). If one wants to frankenstein a machine that is entirely their business, there is no right or wrong to this hobby and I can only speak for myself. I also restore old radios and televisions. Some fellow enthusiasts will take an old television cabinet and place a new color chassis in it, others refinish cabinets to look brand new. There are cases where an incorrect chassis is added to a set to get it working because the original is unobtainable. It is all subjective and up to the individual. Marty ______________________________ Reply Separator _________________________________ Subject: Re: Re[2]: Provenance and lineage Author: classiccmp(a)u.washington.edu at internet Date: 2/26/98 12:00 AM < I don't care for replicas. Instead of building a replica why not try < to make your own design from scratch? At least it would be original. I'm likely one of the few that could build a TRS-80/altair/? clone and use unused parts all of the correct age! My spares bin is that deep and old. To me there is no point, I can find an original and bring it back to life easier. Allison ------ Message Header Follows ------ Received: from lists3.u.washington.edu by smtp.itgonline.com (PostalUnion/SMTP(tm) v2.1.9i(b5) for Windows NT(tm)) id AA-1998Feb26.000025.1767.28853; Thu, 26 Feb 1998 00:00:25 -0500 Received: from host (lists.u.washington.edu [140.142.56.13]) by lists3.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with SMTP id UAA25683; Wed, 25 Feb 1998 20:56:17 -0800 Received: from mxu2.u.washington.edu (mxu2.u.washington.edu [140.142.32.9]) by lists.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with ESMTP id UAA29334 for <classiccmp(a)lists.u.washington.edu>; Wed, 25 Feb 1998 20:56:00 -0800 Received: from europe.std.com (europe.std.com [199.172.62.20]) by mxu2.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.09) with ESMTP id UAA18566 for <classiccmp(a)u.washington.edu>; Wed, 25 Feb 1998 20:55:59 -0800 Received: from world.std.com by europe.std.com (8.7.6/BZS-8-1.0) id XAA04350; Wed, 25 Feb 1998 23:55:57 -0500 (EST) Received: by world.std.com (TheWorld/Spike-2.0) id AA14341; Wed, 25 Feb 1998 23:55:43 -0500 Message-Id: <199802260455.AA14341(a)world.std.com> Date: Wed, 25 Feb 1998 23:55:43 -0500 Reply-To: classiccmp(a)u.washington.edu Sender: CLASSICCMP-owner(a)u.washington.edu Precedence: bulk From: allisonp(a)world.std.com (Allison J Parent) To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu> Subject: Re: Re[2]: Provenance and lineage X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN

28 years, 1 month

2
1
0 0

Electronic Goldmine

by rigdonj＠intellistar.net

I couldn't find my old catalog for these folks but I got a new one in the mail today. They have an 800 phone number, it's 1-800-451-7454. They also have a website at "www.goldmine-elec.com". Tell them I send you, maybe they'll give me a discount :-) This is the place that had the pens for the Radio Shack pen plotters. Joe

28 years, 1 month

1
0
0 0

Can anyone identify this item ? (BASF HD?)

by weese＠mind.net

BASF model 6106, part #54670 Looks like a HD, connected to a floppy with a ribbon cable, which then goes to the motherbd. Found in what appears to be a homebrew TRS80-type puter with LNW expansion board. Thanx in advance for any help. I'd also be interested in any advice as to where to list this Beast for sale. (weese(a)mind.net) ---mikey

28 years, 1 month

6
8
0 0

Motorola MEK6802D5

by amichael＠nortel.ca

I remember building embedded control systems with these D5 cards back in the early eighties. You are right, it is an evaluation system, but it was often used for simple prototypes and small production runs. Motorola priced it relatively cheap so engineers could gain familiarity with the 6802, which was an "update" of the classic 6800 processor. The 6802 incorporated the 2-phase clock generator circuitry onchip-- you used to have to add a nuisance clock circuit to make the 6800 run. I think the 6802 also included 256 bytes of RAM (but my recollection's fuzzy on this point.) Since the board also included a little debug/monitor program in PROM, using that hex keypad and display, you could learn a lot about the instruction set just by hooking up a power supply and playing. It was a lot like the KIM or AIM-65 boards for the 6502 cpu. Does the D5 have a large set of edge connect fingers (like, say, 86 contacts or something like that)? I can't remember... Other Motorola evaluation kits, like the D2 (a predecessor of your D5, also based on the 6802 cpu but built as 2 boards--the keypad was separate) had a full electrical interface to Motorola's ExorBus, which was their proprietary general-purpose microsystem bus. They made a full range of heavy-duty industrial boards for ExorBus, and their development systems used it too, so you could build full-blown microsystems with their board sets. This was a competitor to Intel's Multibus in the industrial control market. You could take a D2, when you got tired of playing with it as an evaluation system, detach the keyboard, and plug it in to an ExorBus as the cpu card. It's barely possible I've got some old docs hiding at home... I'll check. Ian McLaughlin <ian(a)okjunc.junction.net> writes: > >Hello all, > I just aquired a "Motorola Memory Systems MEK6802D5" single board >computer. It appears to be a 6802 evaluation or prototyping unit. It >has a hex keypad and a 6-digit HEX display. In my old Motorola >literature, I can find a reference for a MEK6802D3 from 1979, which >appears to be an older version of this. The date code on the chips >places it at circa 1980. > >Does anyone have any information on this unit? Any idea where I can get >any documentation or programming info? It appears to be fully functional >(at least, I get a display, and I can page up and down through memory >examining and changing contents, etc). > >Any info would be appreciated. -- Arlen Michaels Nortel Ottawa, Canada (613) 763-2568 amichael(a)nortel.ca

28 years, 1 month

1
0
0 0

Pascal System

by allisonp＠world.std.com

<I think this calls for the development of a custom Pascal unit to access <foreign filesystems (ie. FAT). I don't think Pascal gives you enough lo <level control to do this right from the language itself, but I'm sure <there are ways to link in assembled code. A project to add to the <spare-time list. P-sys pascal can get to devices and disks so to write a disk with a different directory structure is doable. It's been done for P-sys to CP/M, Turbodos, apple][. You can also link in assembly code. Also I believe it may be possible to write a disk driver(for hard disk) in pascal and bind it to a free unit. For that you would UCSD pascal Docs and any implementation docs for the specific system. Some of that might be possible to infer. Though it's been 10 years since I last ran my copy of NS* UCSD P-sys but other than speed I remember it as flexible, well organized and cramped (northstar* single density drives were only 80k!). Allison

28 years, 1 month

1
0
0 0

UCSD Pascal

by jfoust＠threedee.com

UCSD Pascal for IBM PC-DOS could run on a hard disk by using .VOL files, which were floppy images of the P-System block format. For much UCSD P-System info, see my web page, including utilities that can get a directory and burst these .VOL files. - John Jefferson Computer Museum <http://www.threedee.com/jcm>

28 years, 1 month

1
0
0 0

Mac hi-res monitor

by A_Finney＠wfi-inc.com

Are you still interested? At 10:56 AM 2/11/98 EST, you wrote: >yes! i need one! glad to pay shipping to nc. is it available? > >david > > >In a message dated 98-02-10 15:25:34 EST, you write: > ><< Does anyone need a Mac mono monitor? Model number MO400, circa 1987. Best > offer takes it, no matter how pathetic. Recipient either pays shipping or > picks it up in the LA area (it's not heavy at all, I can't imagine that ups > ground would be more than a few bucks on this thing). >> > >

28 years, 1 month

1
0
0 0

TIMSAI (was Photo of Smithsonian microcomputer exhibit)

by rcini＠email.msn.com

On Wed, 25 Feb 1998 08:28:45 -0800 (PST), Tim Shoppa <shoppa(a)alph02.triumf.ca> wrote: {snip} >>For those who really want a S-100 front panel machine, maybe they'd be >>willing to pay for me to make duplicates of my TIMSAI. Features: {snip} Tim, I heard that at one point you were making schematics and info about your TIMSAI project available to those who are interested. Is this still the case? ------------------------------------------------- Rich Cini/WUGNET <nospam_rcini(a)msn.com> (remove nospam_ to use) - ClubWin Charter Member (6) - MCP Windows 95/Windows Networking

28 years, 1 month

1
0
0 0

Photo of Smithsonian microcomputer exhibit

by photze＠batelco.com.bh

Well, I've had an idea for quite some time, and now's the best time yet to pop it up... in many developing contries, resources are streesed out, and many attempts to industrialize these contries are going underway. The thing is that in some areas, going to school's a new requirement, and that these schools arn't up to specs. The idea for them going to schools is so that they have better opertunities than their parents did (so that they could say do accounting instead of sweeping floors). Now, to me, that means having at least a little coputing experience. I want to design (with help!) a computer that gives the most power at the lowest price. The shipping computers to other contries idea is noble, but we need to go farther, and, this can be fun. We could use the same idea, etc. if anyone's interested, please contact me privately. I'm really interested in it now, but need lots of help. Thanks, Tim D. Hotze -----Original Message----- From: Charles A. Davis <cad(a)gamewood.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Wednesday, February 25, 1998 5:49 PM Subject: Re: Photo of Smithsonian microcomputer exhibit >Scott Walde wrote: >> >> > >Thinking out loud: >> > >I wonder what the market would be for an Apple I replica? >> >> Also thinking out loud: >> Maybe if we as collectors flood the market with Altair and IMSAI and Apple >> I replicas it would drive the price of the real things back down. > >Yeah, but!!! > >Can you picture the problems trying to document the lenieage of a >'genuine' Altair, IMSAI, or Apple. > >Chuck > >-- >----------------------------------------------------------- >He, who will not reason, is a bigot; William Drumond, >he, who cannot, is a fool; Scottish writer >and he, who dares not, is a slave. (1585-1649) >While he that does, is a free man! Joseph P. 1955- >----------------------------------------------------------- > (be sure to correct the return address when using 'reply') >Chuck Davis / Sutherlin Industries FAX # (804) 799-0940 >1973 Reeves Mill Road E-Mail -- cad(a)gamewood.net >Sutherlin, Virginia 24594 Voice # (804) 799-5803

28 years, 1 month

3
3
0 0

[Fwd: Any info on an 8-bit Sharp computer?]

by hansp＠columbia.digiweb.com

Can anyone help with info/softwre on a Sharp MZ-700. Reply directly to Eurico and perhaps suggest that he subscribes. -- Hans B. Pufal : <mailto:hansp@digiweb.com> Comprehensive Computer Catalogue : <http://www.digiweb.com/~hansp/ccc/> _-_-__-___--_-____-_--_-_-____--_---_-_---_--__--_--_--____---_--_--__--_

28 years, 1 month

1
0
0 0

Pascal System

by mallison＠konnections.com

I have an IBM Pascal System for the PC Does anyone know if it's possible to use a hard drive with this system? There are no references and no seeming commands for manipulating storage.... Ideas?? -Mike

28 years, 1 month

2
2
0 0

Photo of Smithsonian microcomputer exhibit

by allisonp＠world.std.com

< My recent COSMAC 1802 find had a white CPU with gold cap. I'd <never seen anything like that before. That was the ceramic package RCA used until about 1981ish. I must have two or three date coded '76-78 time frame. Actually I have tubes of LSI all from before 81 just laying around. Allison

28 years, 1 month

2
1
0 0

Pretty good week

by adam＠merlin.net.au

> Re: where to find them. You guys should be down here in Florida. I find >so many that I have to pick and choose. I left behind 4 AT&T 3B2s, a NeXt, >an AT&T 6300, 2 HP Appollos and 2 HP 9000/300s yesterday. All of that was >at a GSA auction at KSC. I did get a COMPLETE Commodeore Pet set and a Vax >Station 3100 for Zane. Do you have any idea what I would do for a NeXT Cube? :) Almost anything - it is right up the top of my wish list. I have only seen one for sale in Australia in the past 12 months, and they were asking $1200 for it. :( Mind you, it didn't sell. Adam.

28 years, 1 month

1
0
0 0

Classic Displays (was RE: Future Computing Trends)

by foxnhare＠goldrush.com

From: Ward Donald Griffiths III <gram(a)cnct.com> Subject: RE: Future Computing Trends >I defy _anybody_ to say that a "better" display would improve any >Big Five Software arcade games as they ran on the 128x48 monochrome >graphics of the TRS-80 1/3. And I defy anybody to find a better >batch of arcade games, unless you really want to see the blood from >kicked-in faces, a fetish I outgrew 25 or so years ago. I know exactly what you mean, I recall my few months of playing with a TRS-80 (loaned to me from the high school) with that wobbly picture when there was too much white on some lines... Sometimes you loose the translation with the sharp graphics generated on multi-sync displays by the emulators. I recall a video flaw on the PET what would generate a hairline verticle line between two characters which I took advantage of in one program (I would not expect VICE to reproduce that)... Then on the 64 some games looked cooler on regular composite monitors than on the crisp split-composite due to the artifacting (case in point was the game Sword of Fargoal, the unicorn's horn looked more like a rainbow than a white dotted line). It was those minute blurs that made the graphics a bit more fancy. Larry Anderson -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare/ Call our Commodore 64 BBS (Silicon Realms 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

28 years, 1 month

4
3
0 0

Is the RL02 cable straight-through?

by adavie＠mad.scientist.com

>Stupid question: > >You are putting the bottom cover of the disk pack >on top of the disk pack before you close the top, >aren't you? The "lid closed" microswitch won't trip otherwise. The only stupid question is the one you didn't ask. And stupidity is in the eye of the beholder. A.

28 years, 1 month

2
1
0 0

Provenance and lineage

by allisonp＠world.std.com

< I don't care for replicas. Instead of building a replica why not try < to make your own design from scratch? At least it would be original. I'm likely one of the few that could build a TRS-80/altair/? clone and use unused parts all of the correct age! My spares bin is that deep and old. To me there is no point, I can find an original and bring it back to life easier. Allison

28 years, 1 month

2
1
0 0

Photo of Smithsonian microcomputer exhibit

by photze＠batelco.com.bh

No, WE make the computer, specifically designed for education/appliance apps and then ship it across the pond. Tim D. Hotze -----Original Message----- From: Joe <rigdonj(a)intellistar.net> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, February 26, 1998 1:29 AM Subject: Re: Photo of Smithsonian microcomputer exhibit >At 08:45 PM 2/25/98 +0300, you wrote: >>Well, I've had an idea for quite some time, and now's the best time yet to >>pop it up... in many developing contries, resources are streesed out, and >>many attempts to industrialize these contries are going underway. The thing >>is that in some areas, going to school's a new requirement, and that these >>schools arn't up to specs. The idea for them going to schools is so that >>they have better opertunities than their parents did (so that they could say >>do accounting instead of sweeping floors). Now, to me, that means having at >>least a little coputing experience. I want to design (with help!) a >>computer that gives the most power at the lowest price. The shipping >>computers to other contries idea is noble, but we need to go farther, and, > > Tim, > > It's a noble idea but before a country can manufacture their own computer >they sould be able to manufacture the majority of the components for it >otherwise they're nothing more than assembly line workers using imported >parts. When you stop and consider all the stuff that goes into even the >simplest computer (sheet metal, molded plastics, resistors, capacitors, >ICs, transformers, circuit boards, special connectors, floppy drives, hard >drives, etc etc etc) you realize the industrial scale that is needed for >this sort of effort. I used to work in aerospace engineering and some of >our foreign contracts called for a minimum percent of the components to be >built in the country that was buying our systems. We made every effort to >meet that requirement but I can tell you it's very hard to find companies >capable of this level of technology outside of the US, England, Germany and >Japan. For example, we had a contract with Canada and one of the parts we >subcontracted to Canadian manufacturers was flexible circuit boards similar >to those used in the hinge of laptops. NO Canadian manufacturer was able >to make those parts despite their best efforts. > > PS I'm Canadian by birth so I don't want any flames about what Canada >can and can't do. > > Joe > > >>this can be fun. We could use the same idea, etc. if anyone's interested, >>please contact me privately. I'm really interested in it now, but need lots >>of help. >> Thanks, >> >>Tim D. Hotze >>-----Original Message----- >>From: Charles A. Davis <cad(a)gamewood.net> >>To: Discussion re-collecting of classic computers >><classiccmp(a)u.washington.edu> >>Date: Wednesday, February 25, 1998 5:49 PM >>Subject: Re: Photo of Smithsonian microcomputer exhibit >> >> >>>Scott Walde wrote: >>>> >>>> > >Thinking out loud: >>>> > >I wonder what the market would be for an Apple I replica? >>>> >>>> Also thinking out loud: >>>> Maybe if we as collectors flood the market with Altair and IMSAI and >>Apple >>>> I replicas it would drive the price of the real things back down. >>> >>>Yeah, but!!! >>> >>>Can you picture the problems trying to document the lenieage of a >>>'genuine' Altair, IMSAI, or Apple. >>> >>>Chuck >>> >>>-- >>>----------------------------------------------------------- >>>He, who will not reason, is a bigot; William Drumond, >>>he, who cannot, is a fool; Scottish writer >>>and he, who dares not, is a slave. (1585-1649) >>>While he that does, is a free man! Joseph P. 1955- >>>----------------------------------------------------------- >>> (be sure to correct the return address when using 'reply') >>>Chuck Davis / Sutherlin Industries FAX # (804) 799-0940 >>>1973 Reeves Mill Road E-Mail -- cad(a)gamewood.net >>>Sutherlin, Virginia 24594 Voice # (804) 799-5803 >> >> >

28 years, 1 month

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BBC troubleshooting (remote debugging)?

by adavie＠mad.scientist.com

Hi all. Thanks to the BBC people who have helped me so far in my quest to restore to life my BBC-B. I have some detailed descriptions of the problem, hopefully to help you help me. Actually its kind of interesting, as I'm sure the problem can be deduced without touching the hardware at all. But first, I have fairly carefully made sure ALL socketed chips are firmly pressed down. And, to be sure, I tried the obligatory half-inch-drop test. More like a 3g WHAM actually. Nothing fixed, nothing further broken :) So, here's a sequence of events and what happens... Power on - BEEP you see just a flashing cursor about 1/3 way down the screen Interestingly, you seem to always see the cursor in the correct spot on screen - this is kind of strange as it doesn't follow the problems evident in the characters - I'd guess that the cursor is some sort of hardware cursor rather than software, and applied independantly of video memory - am I right? So, you see a flashing cursor - I also guess that the top few lines above the cursor are some sort of boot message for the machine. You don't see anything but the cursor. type (AAA, for example) and you see the cursor move horizontally. But no characters. If you power up again, and hit about 9 returns, you see a > that is, the prompt. But, you also see it all over the top half of the screen repeated every 64 character positions. I counted. The screen is currently in 40 x 25. type AAA and you see AAA beside every prompt on the screen (about 9, from memory). delete the AAA, back to the > now type 12345678901234567890123 etc you can type exactly 31 characters (32 with the prompt included) and then you can't see what you're typing anymore. Delete all that. Hit Returns to the bottom of the screen. A prompt appears, and the bottom of the screen is also filled with prompts every 64 characters. now do the 1234567890 etc. You can type 63 (64 with the prompt) and as you type, the lower screen fills (ie: beside every prompt) with what you're typing. After 64, you've filled the lower screen and can't see what you're typing anymore. Typing more characters DOES NOT erase the characters under the cursor (ie: you're seeing different video memory from where the data is being stored). When lines scroll off the top of the screen, those lines appear again at the bottom of the screen. I did see some interesting random colours and corruption on the screen, but only once. now type CLS type 40 As 40 Bs Cs, Ds, Es, Fs. you get a beep (limit is 6 lines) press return all you see is the flashing cursor (screen is empty) now Gs Hs Is Js... you type 8 Js, and suddenly you start seeing what you type another 32 Js Ks .... you type 32, and the entire top of the screen is now filled with Js and Ks. the next 8Ks are invisible. Ls... BEEP (6 line limit) Ms Ns Os Ps Qs Rs.... BEEP NONE of the above 6 lines appear onscreen RETurn > appears in bottom half of screen (7 of them, in the 64 spacing pattern) type Ss..... when you get to the last 8, they appear (with the >) beside the Ks where the last 8 were unseen. So, quite a puzzle. 64 is a magic number, implying to me that somewhere a 7th bit is misbehaving on an address. I'd appreciate any comments and insights on this pattern. Where do I go from here? Cheers Andrew

28 years, 1 month

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front panels

by allisonp＠world.std.com

<>> Processor. The 8080 CPU does I/O To/From the accumulator which is <> <>I beg to differ. Last I checked, today the 8080 IO is from and to the accumulator. <>All you have to do is to put the CPU into a wait state, tri-state the <>bus buffers and directly drive the address, data and control lines from <>hardware on the frontpanel controller. You can access memory or I/O port <>that way. <> <In other words, make the front panel do a DMA access, either to memory or <I/O port? That way it doesn't affect the CPU state at all, except the CP <has to be running in order to handle the DMA grant. Show me a simple mod that would make the Altair or IMSAI or their direct decendants do it. I'd suggest looking at what they did do first as it will limit your options. As to what can be done with a clean sheet of paper I can give you the following: Good, Fast, Cheap: you may pick any two. Allison <

28 years, 1 month

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Walnut Creek CP/M CDROM Discontinued

by bwit＠pobox.com

The Computer Journal used to carry this CD. Try at http://www.psyber.com/~tcj/ Bob ---------- From: Jason Brady[SMTP:jrbrady@mindspring.com] Sent: Wednesday, February 25, 1998 5:15 PM To: Discussion re-collecting of classic computers Subject: Walnut Creek CP/M CDROM Discontinued Tried to order one today - Walnut Creek discontinued this product a couple of weeks ago. Lousy timing, eh? Does anyone know of a third party vendor that might have some available? Thanks, Jason Brady jrbrady(a)mindspring.com Seattle, WA

28 years, 1 month

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Northstar Horizon

by allisonp＠world.std.com

<I'm not sure if the Horizon bus is fully IEEE-696 compliant. Tim or <Allison? Close enough, it never caused me grief. Allison

28 years, 1 month

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Epson Equity LT 286

by alanr＠morgan.ucs.mun.ca

I have recently come into an Epson Equity LT 286 laptop, however I didn't get an AC adapter with it. Does anyone out there have one they can part with, or better yet, have the specs handy so I can hack on together myself? Any help would be appreciated. ------------------------------------------------------------ __________________________________________Live from the GLRS The Man From D.A.D ------------------------------------------------------------

28 years, 1 month

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Future Computing Trends

by sinasohn＠ricochet.net

Last night, I was mucking around eBay (don't ask me why, I'm so broke I can't pay attention) and spotted an AirMedia "NewsCatcher Internet Antenna!" with a starting bid of $5 and no bids. So I put in a bid of $5. I'm not worried about whether or not I'm the high bidder when all is said and done, but it did get me thinking. I've got a Ricochet modem (Yeah!), there's this thing, I know there was another PCMCIA card thing that did wireless connectivity... Probably others I'm not aware of. IIRC, one of the features of Alan Kay's (proposed) Dynabook was that whereever you went, (school, office, library, etc.) the computer would be aware of what resources were available at that facility and would be able to access them wirelessly. As I see it, we're going to get to a point somewhere down the line where Alan Kay's idea will come true -- except that instead of just being able to access local resources, you'll be able to access the 'net from just about anywhere, wirelessly. This will all be built in to laptops. So it occurs to me that these first, early attempts at wireless connectivity are important milestones, and are worth collecting now (or in the near future when they become affordable). I guess, then, my question is, does anyone have any suggestions as to what else may fall into this category? Feel free to e-mail me directly... --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

28 years, 1 month

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Future Computing Trends

by sinasohn＠ricochet.net

At 12:41 AM 2/22/98 -0500, you wrote: >I defy _anybody_ to say that a "better" display would improve any >Big Five Software arcade games as they ran on the 128x48 monochrome >graphics of the TRS-80 1/3. And I defy anybody to find a better I dunno if "eliminat" (Eliminator) was a Big Five game, but it was great. I too, have yet to see much on anything newer that can beat it. (Okay, well, maybe BallBlazer on the Atari.) --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

28 years, 1 month

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Photo of Smithsonian microcomputer exhibit

by higginbo＠netpath.net

At 08:42 PM 2/25/98 +0000, you wrote: >Yuck!!! Why on earth would anybody want to do that? If you want a machine >that's not available, then recreate it using parts as close to the >originals in function as possible, sure (as an example, say you couldn't >get any 2102 1K*1 RAMs. Use 2114 1K*4 RAMs instead - just a quarter of >the number). But to use the logic board out of some other machine >attempting to emulate a classic is plain stupid. Look, opinions differ. No need to get ugly about it. Different aspects are more important to different people. I won't try to defend my position here, you win, I'm stupid. There. Now isn't that better than a flood of messages back and fourth?

28 years, 1 month

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BBC troubleshooting (remote debugging)?

by adavie＠mad.scientist.com

>> Power on - BEEP >That should be a two-tone beep. It's the standard BBC power-up sequence. Ok... bEEP...BEEP! >In mode 7, 1 byte of video memory corresponds to 1 character on the >screen. So it looks like you have a problem with address line MA6 from >the 6845. If you can borrow a logic probe, look at pin 10 of the 6845 >(look at 8, 9, 11 as well, in case I've miscounted) - there should be a >square wave (pulsing) there, and then trace it through IC36c (again, >there should be pulsing at pin 8 of this chip). Will be a while before I can borrow a logic probe. However, removing and reseating the 6845 has had no effect on the problem. To be continued... A

28 years, 1 month

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Re.: PDP Diagnostic card

by rcini＠email.msn.com

On 2/24/98, Tony Duell wrote: {snip, snip about the DEC KM11 maintenance card} Tony: I took a look at the KM11 diagnostics card and compared the pinout to the Unibus pinout that was posted on the list in the last week. First off, do you think that the KM11 will work on an 11/34?? Anyway, I'm not clear as to whether the function descriptions that I have match what the KD11 is supposed to use: 1. bus pin B1 (I'm assuming that that's really pin AB1) is BIRQ6 (according to the post last week), but is shown supplying 8v to the display drivers. 2. The switch S1 is shown providing a ground path on closure to pin AB2. According to the previous post, AB2 is a -12v supply rail. 3. Switch S2 is feeding pin AV2, which is BDAL01. 4. Switch S3 is debouncing pin AA1, BIRQ5. 5. Switch S4 is debouncing pin AU1, PSpare1. Hopefully I'm looking at the right diagram! Rich Cini/WUGNET <nospam_rcini(a)msn.com> (remove nospam_ to use) ClubWin! Charter Member (6) MCP Windows 95/Windows Networking ============================================

28 years, 1 month

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Motorola MEK6802D5

by ian＠okjunc.junction.net

Hello all, I just aquired a "Motorola Memory Systems MEK6802D5" single board computer. It appears to be a 6802 evaluation or prototyping unit. It has a hex keypad and a 6-digit HEX display. In my old Motorola literature, I can find a reference for a MEK6802D3 from 1979, which appears to be an older version of this. The date code on the chips places it at circa 1980. Does anyone have any information on this unit? Any idea where I can get any documentation or programming info? It appears to be fully functional (at least, I get a display, and I can page up and down through memory examining and changing contents, etc). Any info would be appreciated. ___ __ __ __ _ _ _ _ |_ _|__ _ _ _ | \/ / _| | __ _ _ _ __ _| |_ | (_)_ _ Okanagan | |/ _` | ' \ | |\/| \__| |_/ _` | | / _` | ' \| | | ' \ Internet |___\__,_|_||_| |_| |_| |___\__,_|___\__, |_||_|_|_|_||_| Junction Network Operations Centre |___/ Phone +1 (888) 944-INET

28 years, 1 month

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Walnut Creek CP/M CDROM Discontinued

by jrbrady＠mindspring.com

Tried to order one today - Walnut Creek discontinued this product a couple of weeks ago. Lousy timing, eh? Does anyone know of a third party vendor that might have some available? Thanks, Jason Brady jrbrady(a)mindspring.com Seattle, WA

28 years, 1 month

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Photo of Smithsonian microcomputer exhibit

by lisard＠zetnet.co.uk

tim shoppa: :But you can't just run an Apple I emulator on the Apple II. The :memory maps are completely different and the video chain of the :Apple I is radically different than any home micro designed since :the late 70's (i.e. it is *not* a memory-mapped video system; it's :closer to a dumb terminal bolted onto a 6502. Well, a really dumb :dumb terminal :-) ) hell, you can emulate anything on anything. it'd just mean you had to emulate a 6502 on a 6502 and trap the pesky screen-write instructions. then again, some things are better left undone... ;> for the benefit of the unenlightened (ie. communa), could you please decsribe the principles of the apple i's video system? thanks. (or point us in the direction of such a description.) -- Communa (together) we remember... we'll see you falling you know soft spoken changes nothing to sing within her... Net-Tamer V 1.08X - Test Drive

28 years, 1 month

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Modern Minimalism (Was: Future Computing Trends)

by lisard＠zetnet.co.uk

jeff said :Oh man, now you're talking! I really wanted to Use Arachne as my :web browser, but I could never get the TCP/IP package to work :(either KLOS, or the other one whose name escapes me). we had good results with DOSPPP, the conversions of the linux daemons. they should be available on simtel. very good; haven't let us down yet (except when the machine we run gets confused about which com ports it has and hasn't got). and you can put pppd and comtool in your dos directory and build a dialling batch file without lots of little bitty files lying around :> arachne is a good browser, yes (someone mentioned webspyder - that's just arachne rebadged, isn't it?) but we got annoyed with the resources. now we use a combination of htget and kevin solway's vh if we're reading, or nettamer if we're searching. -- Communa (together) we remember... we'll see you falling you know soft spoken changes nothing to sing within her... Net-Tamer V 1.08X - Test Drive

28 years, 1 month

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IMSAI 8080 <> TRS-80

by MPritchard＠EnsembleStudios.com

I noticed it all right.... only off by the make of computer and 5 years... *sigh* <gag> <choak> -Matt Pritchard Graphics Engine and Optimization Specialist > -----Original Message----- > From: bill_r(a)inetnebr.com [SMTP:bill_r@inetnebr.com] > Sent: Tuesday, February 24, 1998 8:36 AM > To: Discussion re-collecting of classic computers > Subject: IMSAI 8080 <> TRS-80 > > Did anyone besides me notice that, judging by their ad in the latest > issue of Computer Gaming World magazine, the software division of > Metro Goldwyn Mayer (MGM INTERACTIVE INC.), producer of the original > "Wargames" motion picture, doesn't know the difference between an > IMSAI 8080 and a TRS-80? Their ad goes something like "In 1983, a > teenage computer hacker almost destroyed the world with one of these: > [picture of TRS-80 Model 1, with caption reading 'TRS-80, 4K RAM, no > hard drive']". It goes on to talk about how much damage he could do > with today's computers (go figure), and introduces their new > "Wargames" computer game. Maybe the marketing department should jog > down to the film vault and watch the movie, because _it_ used an IMSAI > 8080 with a piece of paper stuck over the name for the young > "hacker's" computer. Sheesh. > > -Bill Richman > bill_r(a)inetnebr.com > http://incolor.inetnebr.com/bill_r > (Home of the COSMAC Elf Simulator!)

28 years, 1 month

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Modern Minimalism (Was: Future Computing Trends)

by maxeskin＠hotmail.com

What would be nice is an ELKS-like thing for DOS, so that one could stick in a floppy disk, and it would boot into any program that you choose, without Command.Com. This would be great for web browsers. But I really don't get this emphasis on making multimedia kiosks with weird software combos! Every other OS page is about this, and I would like to see something besides using DOS to sell clothes... >>QNX is a very small micro-kernel OS that has the look of Windows 95, has >>builtin TCP/IP networking, a notepad, a few other little doodads, and to >>top it off, a fully functional HTML 3.2 compliant web browser. Also > >Okay, QNX sounds pretty cool, but I hafta throw my vote in for Arachne. >Graphical DOS web browser runs on anything, I think, and works great. I >found it when I was looking for something to preview my web pages in (I do >'em in a DOS Editor). > > >--------------------------------------------------------------------- O- > >Uncle Roger "There is pleasure pure in being mad >roger(a)sinasohn.com that none but madmen know." >Roger Louis Sinasohn & Associates >San Francisco, California http://www.sinasohn.com/ > > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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FW: still want one??

by DFRITZKE＠ci.crystal.mn.us

---------- From: DAVID FRITZKE To: displaywriter Subject: still want one?? Date: Wednesday, February 25, 1998 1:22PM Hey, I have an IBM displaywriter system I am looking to unload. I thought I'd spend a second trying to find somebody who may want one, and I ran across your address. I've got the whole works, manuals, disks galore "toaster" floppy drive (what is up with the dual cables??) I was hoping to find a driver for the hammerhead printer so my Dad could use it with his "new" 486dx33 and Microsoft word. The printer has a standard serial connector, so I was hopin'...........??? dave PS I wish I still had my Zenith PC2, sigh.

28 years, 1 month

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Weekend finds! (CPU's, Printers, Disk Drives, Software, etc.!!)

by archive＠navix.net

Hello: This weekend I was fortunate to have made some very good finds.... all in one place, all at one time! Anyway, below is a list of the truck-load I got. Along with many of the items is a question or two, and this is where I am hoping you could please help me out! At the very end is the total price I paid for everything as one lot. Let me know if you think it was a good buy or not. Maybe let me know some current values to you collectors? Also let me know if you're interested in any of the items... we may be able to work out a deal. Basically, all items can be considered FOR-SALE!! Remember, this is just what I acquired this last weekend. Feel free to check out the URL on my signature at the bottom to find our complete inventory (well, minus about 5000 items we are trying to get entered into the computer!!) Oh, and the site is quite new, so many links are broken yet, and the pages are far from complete!! Give me a few days :-) Oh, please forgive me, as I know some of you don't enjoy reading these "weekend additions." But, I figured this was the best place to post my questions as well. Thank you very much, and please let me know if you would like any of this stuff, or have more information on any of it! Thanks, CORD COSLOR ___________________________________________________ | Cord G. Coslor : archive(a)navix.net |\ | Deanna S. Wynn : deannasue(a)navix.net | | |---------------------------------------------------| | | http://www.geocities.com/SiliconValley/Vista/4395 | | |---------------------------------------------------| | | PO Box 308 - Peru, NE - 68421 - (402) 872- 3272 | | |___________________________________________________| | \____________________________________________________\| -------------------------------------------------------------------------------------------- The list follows: Computers/CPU's ---------------------- *Epson HX-40! On the front of this little laptop, it says "MajicBox." Has a LCD, adjustable (tilt) display, full keyboard and is model #H401A. It runs off batteries or a rechargeable battery pack which is still with the machine. Has a "backup on/off" switch on the underside. Also on the underside is a bay for programmable ROM chips. Without the chip inserted, it boots to an A> prompt, but I don't know what I can do after that. Does anyone have a BASIC chip for it. With the chip inserted, it boots to a Pharmecy drug order program that is pretty slick. This computer has ports for cassette, seriel, RS-232C, and printer. Also has something labeled cartridge out, but I can't get it to do anything. It looks like it's been converted with something that looks like a audio jack, from the factory or factory add-on. There is also a small compartment on the right of the monitor -- unknown use. It looks very similar to the Epson HX-20 -- which is known as the first lap-top. Could some of you give me some more information on my particular unit? I could find no information searching the web! *Data General One laptop. This was made by Data General in the early 1980s.... it is said to be the first successful laptop. Full screen, and two 3.5" disk drives. Curious if it has a ahrd drive inside. I really need power supply information for this, does anyone have it?? What type of software does it run? This is in near mint condition and want to get it up and running. It is said to be working, but I really need that power supply!! *Visual -- I have no information on this one! Full keyboard.. missing the keypad Return key. Dual 5.25" drives. Has a phone jack i the front by the keyboard. It says the Model is a Visual 1083, and is made by Visual in Lowell, MA. Does anyone have more information on this??? *Hewlett Packard 9121. Does anyone have some info on this for me? It has dual 3.5" drives. No monitor, etc. with it. What kind of software does it run, etc., etc.? *Laser 386/SX-25 CPU. Has both 3.5" and 5.25" disk drives. Also has a VGA card, and a 100+ meg hard drive. Boots up great --- has 1.5 (??) meg of Ram.... need a keyboard for this guy. I thought my TRS-80 Model 2000 keyboard would work. The keyboard gets power, recognizes caps, etc., but still get a keyboard error --- anyone have any ideas? *Apple //c computer. Works perfectly *Apple //c computer. Works perfectly *Apple //c computer. Works perfectly *Apple //c computer. Works perfectly *3 empty Apple //e cases. Does have keyboard and keyboard circuitry. One case has a volume knob and a ear-phone jack added to it. *Apple //e computer. Long cable coming out of the back. *Franklin Ace 1000 computer.  Apple compatible... great condition. *TRS-80 Model 1 - keyboard only. Missing the #8 key from the keypad. Cat # 26-1006 *Radio Shack TRS-80 Color Computer 2 - cat# 26-3026 Serial # 0007201- a lot of yellowing. *Tandy Personal Computer keyboard for the Tandy 1000 series. * Tandy TRS-80 Personal Computer keyboard for the TRS-80 Model 2000 computer *Tandy TRS-80 Model 2000 #26-5103 - great condition. Dual 5.25" drives. What DOS does this run? *Commodore Vic-20 computer. Great shape, works excellent! *Commodore Plus/4 computer. Mint condition with original box, power supply, & cables. Also both factory manuals. *Commodore 128D computer. Mint condition CPU. No monitor, disk drives, cables, etc. What does it take... also what type of keyboard does it use? Monitors ---------- *Apple monochrome monitor. Aug. 1989 - Model #A2M6016 * Apple //c monochrome (?) monitor - Model #G090S -- has some screen shimmying going on. *Apple high-resolution monochrome monitor. Model # M0400 works great. *Tandy TRS-80 High Resultion Color Monitor CM-1 . Model #26-5112 with all cables. *Tandy RGB Color Monitor CM-5 *Three more Apple monitors -- info on them not handy right now. Oh, one is an Apple /// monitor? Disk drives, other storage ----------- *Three IBM disk drives (5.25") info. not available right now on them. *2 more Apple disk drives - specifics not handy right now. *FileSafe Tape Series 7150 by Mountain. I believe this is a type of tape storage system. I have no power supply, and am wanting more information on this. What computers used it? *Percomm Data 5.25" disk drive. No other writing on this silver case. Probably used with a TRS-80 Model 1 or similar computer. *Disk //c for the Apple //c. Model #A2M4050. Does this run off of the computer's power supply? It must. *5.25" disk drive. No information on it. It says it is by AE. External. Has built-in interface cable. *3 external Apple Unidisk drives. *Apple 3.5" disk drive for the macintosh. Model #M0130. *Super 5 5.25" disk drive. No info on this except it was made by EI-EN Enterprises in Tokyo. * 2 more Apple Disk // external drives. *Franklin Ace 10 disk drive for the Franklin Ace 1000. 5 1/4" disk drive.with built-in cable. *Apple UniDisk Model #A9M0104 -- newer style *Apple disk drive(?) No writing on the 5.25" drive -- colored like the Disk // units. *Tandy 10 Meg hard disk system. What computers was this made for? 1000 series?  #25-1025. Will it work with a Model 4 or CoCo 3?Underneath It says 3 head 303 Cylinder. Last repaired in 1988. *IBM 3.5" internal disk drive (??) Says TEC. *Need more info. on this one. Internal drive the size of a 5.25" drive. But, it looks like it takes small business-card sized wafers of some sort. Anyone heard of something like these for an IBM/compat? Printers ---------- *Imagewriter // printer for Apple *3 misc. printers - don't have their info right here now. *Radio Shack TRS-80 lineprinter VII *Radio Shack DMP 200 *Radio Shack Ink Jet Printer JP1000 *Commodore MPS 802 *Vic 1525 Graphic Printer *Apple image writer 2 *Hush 80 P portable printer. This is an odd bird? More info.?? It is by ergo systems. About a foot long by 4" wide. Looks like a thermal printer? Books/Manuals, etc ----------------------- Commodore 64 Programmer;s Reference Guide. 486 pages by Commodore. *Commodore 64 User's Guide - 170 pages or so --- by Commodore. *Commodore Wordstar Colt manual. From MicroPro. *Apple // UniDisk Owner's Manual *Apple //c Owner's Manual *Setting Up Your Apple //c *Apple // Model 300/1200 User's Manual -- still in shrink wrap. *leather Goddesses of Phobos cartoon maps by Infocom. Xerox's?? *Tandy DMP 203 User's Guide *Commodore 1802 Color Monitor User's Guide *ThinkTank: The First Idea Word Processor original manual and box for the Apple Mac. *A bunch of Apple books and manuals -- info. not handy right now. *Apple //c Scrube Printer User's Guide to the //c still in shrinkwrap. *Apple /// Imagewriter User's manual. *Apple // Disk Two Installation Manual. Miscellaneous ---------------- *Apple //c power supply *Apple //c power supply *Apple Scribe printer robbin cassette for use with Apple Scribe Printer. Unused. *Apple //c video accessories in original box. Comes with cable, TV switch box, and Modulator... any more info?? *Commodore 128 power supply. *Mustek Twain-Scan color handheld scanner. Still in box with installation software, PC card, & manuals! *10 Blank 5.25" diskettes - Memorex 2s/2d *Something called a BlackBox. It has a phone jack on one end and on the other it plugs into some type of port. Model #ME723B-M -- does anyone have some info on this? *KoalaPad. I think for the Commodore computer. Does anyone have some more info on this? Maybe some software? *Commodore Model 1200 Model #1670 *Joystick by IBM. Very small with a really odd connector on it (8 pin squares). *Concord Data System 224 - Is this a modem? It's a rectangualr box has has phone jacks on the back, and many labeled lights on the front. With power supply. *Apple roller (whatever they're called)... oh, track-ball type of deal. Model #Ap07055 *Three various Apple cables. TV/ Video cables, printer cables, and something else. Software ----------- *Samna word processor for IBM Dos 2.0, 2.1,  or 3.0 (3 disks) with manual and book holder. *The Hibbot for the Commodore 64 - with original box, manuals, maps, etc. Distributed by Addision-Wesley. *Radar Rat Race cartridge for the C-64 *MasterType cart for the C-64 *Below the Root (???) game copy on dissk for the Commodore 64. *Aztec game original box, manual, and game disk for the Apple/Commodore. *the Bard's Tale III Thief of Fate original box, manuals, code wheel, and disks (2) for C-64. *Aple //e original disk - An Introduction by Apple - written in Pascal. *Volcanoe orginal game disk by Softsmith for the Apple // - Franklin *OptionX " " " " *Little Speller " " " *SpaceWare Educational/Game software for the Apple series *Thunderclock basic software by Thunderware for the Apple (Dos 3.3) *Cosmos Screen Mixer utility software by Astar Co. for the Apple (?) original disk *The Assembler original disk by MicroSparc for the Apple *Certificate Maker original disks for the Apple // (2 disks) *The Newsroom for the Apple original disks by Springboard (2 disks) *VisiCalc for Apple by Personal Software, Inc. *VsiCalc progrma diskette for the Apple by VisiCorp. *The Professional Sign Maker original disk for Apple by Sunburst Software. *Apple //+, //e demo disk by Robot Corp *The Star Gazer's Guide for the APple original disk. *Xerox Desktop Publishing Series (10 disks) plus 4 disks of a patch. All original-- more info?? *Macrosoft for Apple *VAI II operating software for the Apple ][ and ][e *VAI II Exercises original disk for the Apple * Frogger for the Apple, distrib. by Main STreet Publishing *Space Shuttle, A Journey into Space by Activision - original disk *dig Dug for the Apple // family. Dist. by Thunder Mountain *Choplifter by Broderbund orginal game disk for the Apple (?) *Apple // orginal demo disk - dist. by Wichita Software * Vic-20 cartridges: Pin Ball, Omega Race, Jupiter Lander, Gorf, Radar Rat Race, Raid on Fort Knox, Avenger, Poker, Cosmic Cruncher, and Mole Attack In 8 cartridge storace holder. Was it all worth my $150. :-) ___________________________________________________ | Cord G. Coslor : archive(a)navix.net |\ | Deanna S. Wynn : deannasue(a)navix.net | | |---------------------------------------------------| | | http://www.geocities.com/SiliconValley/Vista/4395 | | |---------------------------------------------------| | | PO Box 308 - Peru, NE - 68421 - (402) 872- 3272 | | |___________________________________________________| | \____________________________________________________\|

28 years, 1 month

3
2
0 0

Nec PC-8201a

by wraith＠prysm.net

Hello my name is Wraith and I am looking for a manual for the 8201a by NEC. If you have any information, please send it my way. I am a computer tech. and I also collect old computers. Thankyou for your time. Wraith

28 years, 1 month

1
0
0 0

Provenance and lineage

by Marty＠itgonline.com

I don't care for replicas. Instead of building a replica why not try to make your own design from scratch? At least it would be original. I don't have an Apple 1, doubt I'll ever luck into one at a reasonable cost and am happy with that (well... fatalistic anyway and have accepted the situation). At least the rest of what I'm preserving is real. No replicas/tributes/fakes for me. Marty Mintzell ______________________________ Reply Separator _________________________________ Subject: Re: Provenance and lineage Author: classiccmp(a)u.washington.edu at internet Date: 2/25/98 12:57 PM At 09:41 2/25/98 -0500, Chuck wrote: >Scott Walde wrote: >> > >Thinking out loud: >> > >I wonder what the market would be for an Apple I replica? >Yeah, but!!! > >Can you picture the problems trying to document the lineage of a >'genuine' Altair, IMSAI, or Apple. That's called provenance, and antique dealers do it all the time -- and I've written provenance on an Apple One myself, which was easy, since the board was being bought from a retired Apple exec and he showed me all the right stuff. Car and airplane collectors have procedures in place to deal with these matters, and we will end up copying those. For example, there aren't many Bugattis around any more with ALL their original parts, but thanks to the infrastructure that's evolved, people simply know which parts are in what car. It only matters when they change hands, anyway. This is what's behind, for example, Chris Bachmann's attempt to establish an Apple One registry. Absent that, though, I think that any Apple One "replica" would currently be considered a forgery. __________________________________________ Kip Crosby engine(a)chac.org http://www.chac.org/index.html Computer History Association of California ------ Message Header Follows ------ Received: from lists3.u.washington.edu by smtp.itgonline.com (PostalUnion/SMTP(tm) v2.1.9i(b5) for Windows NT(tm)) id AA-1998Feb25.125728.1767.28732; Wed, 25 Feb 1998 12:57:28 -0500 Received: from host (lists.u.washington.edu [140.142.56.13]) by lists3.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with SMTP id JAA07558; Wed, 25 Feb 1998 09:49:36 -0800 Received: from mxu1.u.washington.edu (mxu1.u.washington.edu [140.142.32.8]) by lists.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with ESMTP id JAA40054 for <classiccmp(a)lists.u.washington.edu>; Wed, 25 Feb 1998 09:49:20 -0800 Received: from relay.batnet.com (relay1.batnet.com [204.188.144.18]) by mxu1.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.09) with SMTP id JAA12177 for <classiccmp(a)u.washington.edu>; Wed, 25 Feb 1998 09:49:19 -0800 Received: from goldrush by relay.batnet.com (SMI-8.6/SMI-SVR4) id JAA12863; Wed, 25 Feb 1998 09:48:26 -0800 Message-Id: <3.0.5.32.19980225092735.011aa480(a)pop.batnet.com> Date: Wed, 25 Feb 1998 09:27:35 -0800 Reply-To: classiccmp(a)u.washington.edu Sender: CLASSICCMP-owner(a)u.washington.edu Precedence: bulk From: Kip Crosby <engine(a)chac.org> To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu> Subject: Re: Provenance and lineage In-Reply-To: <34F42DB3.72E1(a)gamewood.net> References: <Pine.LNX.3.96.980225081924.1883A-100000(a)walde.cprompt.sk.ca> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Sender: chac(a)pop.batnet.com X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN

28 years, 1 month

2
1
0 0

cold computing

by adavie＠mad.scientist.com

I feel so bloody silly. OK, so my eyes were blurry and I just woke up. And I wasn't wearing my glasses. Cold MEDICINE. Doh!! *sigh* -----Original Message----- From: Andrew Davie <adavie(a)mad.scientist.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, February 26, 1998 6:52 AM Subject: cold computing >Typing on a cold machine?!! Now THAT brings back memories. >I remember borrowing a friend's OSI Challenger 1P one winter. >With a metal case, and a fan that sucked air IN to the computer, and forced >it out the keyboard, that was one COLD cold cold way to program!! >A > >-----Original Message----- >From: George Rachor <george(a)racsys.rt.rain.com> >To: Discussion re-collecting of classic computers ><classiccmp(a)u.washington.edu> >Date: Thursday, February 26, 1998 6:39 AM >Subject: Re: Photo of Smithsonian microcomputer exhibit > > >>Oh no!.. not down that rat hole.... >>80% of the original Matchbox car! >> >> >> >>I shouldn't really type while on cold medicine. >> >>George Rachor >> >>========================================================= >>George L. Rachor george(a)racsys.rt.rain.com >>Beaverton, Oregon http://racsys.rt.rain.com >> >>On Wed, 25 Feb 1998, Tim Shoppa wrote: >> >>> > Maybe replicas should follow the example set by Matchbox (Diecast model >>> > cars). In their case all replicas were made at 80% of original size. >>> >>> A diecast car replica 80% of original size? That's a lot bigger than the >>> ones I used to play with as a kid! And isn't the lack of a motor a >>> dead give-away that it isn't the original? >>> >>> [ :=) for the humor-impaired ] >>> >>> Tim. >>> >> >> > >

28 years, 1 month

2
1
0 0

Photo of Smithsonian microcomputer exhibit

by higginbo＠netpath.net

At 06:54 PM 2/24/98 -0800, you wrote: >> A friend of mine was recently in D.C. and took this >> photo of the Microcomputer exhibit in the Smithsonian >> Museum. I recognize the Altair and the Sol but what >> is the Apple prototype sitting on the table? Here is the >> link to the photo... Thinking out loud: I wonder what the market would be for an Apple I replica?

28 years, 1 month

12
22
0 0

Punched tape reader being auctioned

by manney＠lrbcg.com

Description: 5'X5'X5',500#,GOES WITH CASE#7323S001. C.N.C. CONTROLLER FOR PRATT & WHITNEY MILLING MACHINE. It's at -- http://ltwebp.lerc.nasa.gov/980006detail.htm

28 years, 1 month

1
0
0 0

logic probe

by adavie＠mad.scientist.com

I asked my boss if he had a logic analyzer i could beg borrow or buy... his reply below. > Do you have a logic probe I can beg borrow or buy? I have quite a fancy 32-channel 100mhz unit, which I haven't used for many months. At around $8000 you would probably prefer to borrow rather than buy it... Mine is a 110v unit, so you'd want to remember to use a transformer... So, I'm assuming I'm set for a logic probe. !!!!!!!!!!!!!!!!!!!!!!!!!! WOw. Can it make tea and coffee too? At THAT price it better. Now for the Multimeter :) Cheers A -----Original Message----- From: Tony Duell <ard(a)p850ug1.demon.co.uk> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Wednesday, February 25, 1998 10:13 AM Subject: Re: a brain... my kingdom for a brain? >> >> Tony's comment, below... about the only equipment needed to repair... was >> helpful. >> So, as I have an Altair, a BBC, a KIM, a Sorcerer and various other beasties >> awaiting ressurection, and having little (well, OK... no) electronics >> experience, starting at square 1... >> a) What should I be looking for in a logic probe. Any recommended models >> (say, <$100) > >I did a lot of repairs using a very cheap Tandy/Radio Shack/Micronta >logic probe, which was officially a 10MHz unit (although it would do a >bit more than that). It only cost about $25, I think. Note that there's a >logic pulser (the equivalent of a signal injector) in the same range >which is a lot less useful than the probe, so if you go for this one make >sure you're buying the right unit. > >HP make some beautiful logic probes, but alas I've never seen one cheap >enough to be worth buying. They do turn up at radio rallies, though. > >It's 8 times your price range (!), but the HP LogicDart is excellent if >you are serious about repairs and doing new designs. Probably total >overkil for repairing micros, though. > >As regards specs, all you really need are TTL thresholds (you don't find >much else in micros - ECL is useful for some minis and workstations, but >few cheap logic probes have that), and pulse detection down to (say) >100ns or better. Just about any logic probe will do. > >> b) Ditto for multimeter. > >Again, you don't need too high a spec - high accuracy is not that useful >in most digital work. > >Analogue or Digital display is fine. I have both - the analogue meter is >better for looking at >What you need are : > >DC voltage ranges up to about 50V (you only need higher voltages if you >repair monitors, etc). A sensitivity of 20000 Ohms/volt (== 50uA fsd >current) for an analogue meter would be fine. Any digital meter would >have a low enough input current. >Ohms - especially a good continuity tester. A lot of faults are broken >wires, defective switches, etc. Make sure the continuity tester responds >quickly - you want to be able to clip on probe onto (say) a connector >pin at one end of a cable and run the probe down the pins at the other >end. If you have to stop for a few seconds on each pin you'll soon go mad. > >Again, that's a pretty low spec. AC voltage (up to mains) is useful for >checking transformers in linear supplies. Current ranges can be handy for >checking PSU load, etc. But I would estimate that 90%+ of all my >measurements are either DC voltage or resistance. > >If you can afford it, get a Fluke (a 77 or a 79 would be _very_ nice). >AVO is another good brand. And although I've never used one, there's a >meter from Tektronix which is probably good. > >If those are out of your price range, then just about _any_ digital meter >costing about $50.00 would be fine. It won't be as robust as the Fluke, >it won't be as accurate. But it'll be enough for most repairs. > >A recomendation. Get a cheap-ish meter like I've just recomended. When >you get more experience and want something better, get the Fluke. Put the >cheap one in the car for checking bulbs/battery/fuses/etc when you break >down. > > >> c) Where can I find a brain? :) > >I wish I knew :-). Mine needs upgrading :-) > >If you want a book recomendation, try 'The Art of Electronics' by Paul >Horrowitz and Winfield Hill. There's also a practical book 'The Student >Manual for the Art of Electronics' by (I think) T. Hayes and P. >Horrowitz. These books cover everything from resistors to >microprocessors, and have an intuitive rather than mathematical approach. >But you won't 'grow out' of them - there's a lot of good sound >information in there. > >> Actually, the Altair will be my first task. I'm thinking of #1 taking out >> all the boards. Good idea? > >Indeed. Pull the boards and clean all the edge connectors (and just about >any other metal-metal contact). > >-tony > >

28 years, 1 month

5
4
0 0

cold computing

by adavie＠mad.scientist.com

Typing on a cold machine?!! Now THAT brings back memories. I remember borrowing a friend's OSI Challenger 1P one winter. With a metal case, and a fan that sucked air IN to the computer, and forced it out the keyboard, that was one COLD cold cold way to program!! A -----Original Message----- From: George Rachor <george(a)racsys.rt.rain.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Thursday, February 26, 1998 6:39 AM Subject: Re: Photo of Smithsonian microcomputer exhibit >Oh no!.. not down that rat hole.... >80% of the original Matchbox car! > > > >I shouldn't really type while on cold medicine. > >George Rachor > >========================================================= >George L. Rachor george(a)racsys.rt.rain.com >Beaverton, Oregon http://racsys.rt.rain.com > >On Wed, 25 Feb 1998, Tim Shoppa wrote: > >> > Maybe replicas should follow the example set by Matchbox (Diecast model >> > cars). In their case all replicas were made at 80% of original size. >> >> A diecast car replica 80% of original size? That's a lot bigger than the >> ones I used to play with as a kid! And isn't the lack of a motor a >> dead give-away that it isn't the original? >> >> [ :=) for the humor-impaired ] >> >> Tim. >> > >

28 years, 1 month

1
0
0 0

front panels

by allisonp＠world.std.com

<b) The Intellec MCS8i panel can access not only the 64K address space of <the 8080 but also the 256 I/O ports. If you flip the right switch you can <use the top 8 switches to select a port and output data to it using the <bottom 8 switches. All this is done in hardware (the frontpanel simulates <an 8080 I/O cycle) without the use of the 8080. It was a neat hack too! Allison

28 years, 1 month

4
3
0 0

IBM 5250 emulator???

by foxvideo＠wincom.net

In one of our original PC's I found a board labeled "5250 emulator" with a 1 1/2" square chip and a fifteen pin connector on the back. Can anyone tell me anything about this? Thanks Charlie Fox

28 years, 1 month

2
1
0 0

BBC - something fell out

by adavie＠mad.scientist.com

Re: BBC repair Oh, forgot to mention I have this interesting gold thingy. It fell out of the BBC when i opened it. To be more precise, it was wedged between a couple of chips, which I guess were RAm. top right near the video connector. It's about half an inch long, looks like it wrapped around the end of a wire. Hollow, one end looks like it can be crimped (its split in half). THe other end shaped like the mouthpiece of a wooden flute/recorder. I have an image up. http://www.comcen.com.au/~adavie/bbc.jpg What is this and do I really really need it? A

28 years, 1 month

2
1
0 0

Modern Minimalism (Was: Future Computing Trends)

by sinasohn＠ricochet.net

>QNX is a very small micro-kernel OS that has the look of Windows 95, has >builtin TCP/IP networking, a notepad, a few other little doodads, and to >top it off, a fully functional HTML 3.2 compliant web browser. Also Okay, QNX sounds pretty cool, but I hafta throw my vote in for Arachne. Graphical DOS web browser runs on anything, I think, and works great. I found it when I was looking for something to preview my web pages in (I do 'em in a DOS Editor). --------------------------------------------------------------------- O- Uncle Roger "There is pleasure pure in being mad roger(a)sinasohn.com that none but madmen know." Roger Louis Sinasohn & Associates San Francisco, California http://www.sinasohn.com/

28 years, 1 month

3
2
0 0

DataNumerics DL8 more info...

by adavie＠mad.scientist.com

When I get it, I will :) >Has anyone actually opened up this Datanumericls DL8A to see if it has >a S-100 bus, power supply, etc?

28 years, 1 month

1
0
0 0

BBC Model B - video help

by adavie＠mad.scientist.com

>Firstly, does Mode 7 behave correctly? Not only does it have the simplest >mapping, it also uses different address buffers between the 6845 CRTC >chip and the RAM. On my diagram, IC10 and IC11 are used in Mode7. IC8 >and IC9 are used in all the other modes. So if _all_ modes, including >Mode7 are faulty, then it's unlikely to be a buffer problem. Mode 7 behaves as my earlier email. Basic repeat unit 64. Mode 0 behaves as if we had two mode 7 screens - and the repeat unit and behaviour unchanged. That would make it unlikely to be a buffer problem, by your reckoning. >Secondly, go into mode 0, and count the number of characters until it >repeats. Multiply that by 8 (to get the the number of bytes before it >repeats) and that'll tell you which address line to look at. Well, 64 characters. That would make it.... 256 bytes, no? Therefore, (guessing) um.... address line 8 (I start counting at 0). SO... uh.... where? Sorry I'm such an electronic idiot. A

28 years, 1 month

1
0
0 0

FW: Freebie Tape Drive in Milwaukee

by kyrrin2＠wizards.net

Anyone feel the urge to own a TU81 6250BPI tape drive that's in Milwaukee at the moment? Get in touch with this fellow... -=-=- <snip> -=-=- Path: Supernews70!Supernews73!supernews.com!sunqbc.risq.qc.ca!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!europa.clark.net!169.207.30.81!newsfeeds.sol.net!newsops.execpc.com!posts.execpc.com!daily-planet.newsops.execpc.com!usenet From: "Dan Reese" <danreese(a)execpc.com> Newsgroups: comp.sys.dec Subject: TU81E 9-track tape drive available Date: Tue, 24 Feb 1998 07:16:02 -0600 Organization: Exec-PC BBS Internet - Milwaukee, WI Lines: 15 Message-ID: <6cuh95$4md(a)newsops.execpc.com> NNTP-Posting-Host: bacrana-44.mdm.mke.execpc.com X-Trace: daily-planet.newsops.execpc.com 888326245 4813 (None) 169.207.82.172 X-Complaints-To: abuse(a)execpc.com X-Newsreader: Microsoft Outlook Express 4.72.2106.4 X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Xref: Supernews70 comp.sys.dec:60814 There is a TU81E 6250 BPS 9-track reel-to-reel tape drive available for the taking in Milwaukee, WI. Has been out of service for over a year, but was in good working order when last on-line. A KLESI adapter is also available for use in a Vax 4000 system. Connecting cables included, along with whatever manuals that can be found. You pick up, but will consider shipping if you absorb shipping costs. Contact: Dan Reese danreese(a)execpc.com -=-=-=-=-=-=-=-=- Bruce Lane, SysOp, The Dragon's Cave BBS (Fido 1:343/272) kyrrin2 {at} wiz<ards> d[o]t n=e=t "...No matter how hard we may wish otherwise, our science can only describe an object, event, or living creature, in our own human terms. It cannot possibly define any of them!..."

28 years, 1 month

1
0
0 0

front panels

by peacock＠simconv.com

The one thing you could do with a real front panel (not the debugger ROMs and a keyboard/LED display) is debug new card designs. Remember the Morrow S-100 extender card with the built-in logic probe? For those of us who wanted to build our own cards (remember wirewrap too?) but couldn't afford a home o-scope, much less a logic analyzer, the logic probe and single stepping front panel were invaluable. You could actually single step execute an I/O command and see the address and data bus decode on the peripheral card. And when you finished soldering that new 8KB static RAM board full of 2102s, you could see the bit change from 1 to 0 right before your eyes, no better way to find a bad chip or solder joint. The best thing IMSAI ever did was come out with a good front panel, not that wiring nightmare that MITS put on the Altair. I still have a running IMSAI with the front panel (circa 1977), plus an Ithaca Intersystems S-100 with the front panel, which was only a slight improvement over the IMSAI version. I also had one homebrew S-100 with the Wameco front panel, which used hex displays for address and data but otherwise was identical to the IMSAI front panel. Does anyone remember other front panel S-100 cards besides MITS, IMSAI, Ithaca, and Wameco? Wasn't there a Byte-8 sold by Olson Electronics for a while that also had a front panel?

28 years, 1 month

6
9
0 0

Vector Graghics

by francois.auradon＠worldnet.att.net

Well actually the Vector 4 (accoding to the doc) has both a Z80B and a 8088-2, they can be individually selected through the use of port 0cH and port 0dH. They are both clocked at 5.1 MHz. And yes the Floppies are hard sectored (16) for a total capacity of 630 KB. They can also be eqiped with a 5MB HD ------------------------------------------------------------- Fran?ois Visit the Sanctuary at: http://home.att.net/~francois.auradon >Yes it was. One of my s100 boxen is a Vector MX (s100 crate only none of >the original boards). The MX was z80 powered byt the Vector 4 may >have been 8088(cpm-86 V1). > >Allison >

28 years, 1 month

1
0
0 0

Photo of Smithsonian microcomputer exhibit

by altair8800＠hotmail.com

A friend of mine was recently in D.C. and took this photo of the Microcomputer exhibit in the Smithsonian Museum. I recognize the Altair and the Sol but what is the Apple prototype sitting on the table? Here is the link to the photo... http://home.att.net/~rwood54741/Museum50.jpg Bob Wood ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

4
3
0 0

North Star Horizon

by allisonp＠world.std.com

<I did some software work on a Horizon many years ago. As I recall, it ha <two full height 5.25" bays, a good sized power supply behind the bays (o <the right side) and a shorty S-100 card cage on the left, 8 card slots? <the NS motherboard also had some logic on the motherboard, at the rear. <believe there were one or two 8251 serial ports, a baud rate generator, <maybe a parallel port or interrupt controller (look for an Intel 8214 or <28-pin AMD IC)? Err no. The back plane will have two 8251 serial port and a parallel port and supporting ttl for same. It has a heartbeat timer for that can drive interrupts. The interrupt logic is on the CPU ZPB-A and it allows 1-of-8 RST locations to be used (z80 mode 0). there isn't a 8214 in the whole thing if it's a Horizon unless the board with it is not from NS*! BTW, 112 slots though a full 64k system could be configured in as few as three cards! The lineup would be CPU, 64k ram card, disk controller and the IO already built into the mother board(2 serial and 1 parallel). The power supply is responsable for 30% of the total weight and is electrically robust. It was easy to check, mine is sitting here cranking a z80 asm file. Allison

28 years, 1 month

1
0
0 0

North Star Horizon

by allisonp＠world.std.com

< I think it uses the S-100 bus. According to their manual, North Star <used the same disk controller in the Horizon that they sold for the S-10 <systems. I have a NS S-100 controller. They are the same electricaly and <software wise but maybe physically different. They are the same or close cousins and both S100. NS* prior to advantage was nothing but an S100 house. The first one sold (still have mine) was MDC-A a single density unit that cound address up to three single sided drives. The later MDS-A was a Double density controller for up to four twosided drives. Both were S100, the same form factor and had on board boot proms nominally at the same standard address. The latter DD version would read and write SD media as well. Now as to formats and non NS* controllers. NONE of the FDC chips can read the NS* format but a controller that could is easily built for most any bus or cpu capable of reading data at the required rate and doing the housework inbetween. Allison

28 years, 1 month

1
0
0 0

front panels

by allisonp＠world.std.com

<These I/O ports are all 8 bit, right? < <Now, an S100 frontpanel would have 16 toggle switches (at least - to <load a memory address). So why can't you either You could they didn't and they board was chockfull of crap and a little more would have made a mess of it. In 1974 the altair was an "ok" design at best. It was one set of engineers vision and at that point their best shot. They did it that way. Allison

28 years, 1 month

1
0
0 0

front panels

by allisonp＠world.std.com

<Was the latter really considered a problem in those days? Or was it <just that as a result it wasn't real useful to have the front panel do <that? (Or was it just the additional cost of having the front panel <do that?) Fancy way is, cost benefit ratio. It cost a lot! Another was, it's easier to not do that. Actually it was rare I needed the ability. Allison

28 years, 1 month

1
0
0 0

front panels

by allisonp＠world.std.com

<But what does an instruction do? It just generates bus cycles, right? <The bus doesn't care whether those cycles come from the CPU or something <else (unless there's bus mastering and arbitration, which I doubt). In theory your correct. <The difference between generating a memory cycle and and I/O cycle on an <Intel CPU is simply a matter of clocking a different value onto the <"control bus" (which might be a multiplexed bus, I don't know the 8080 <that well). Reducing that to practice and at a low cost on S100 bus with an 8080 is a different matter. To understand that you need to know both as S100 was not a bidirectional data bus(seperate data in and data out paths) and all the bus control signals were RAW 8080 status/controls making it a royal pain to do DMA on the bus. To make a point to do a memory write on the bus you have to output SWO/, PWR/, MWRITE, SMEMR, SOUT, SINP, PDBIN and all of them must be in the correct state (some are active high!). S100 was a poorly designed bus in that respect. I may add that Altair 8800(a) and Imsai were not bus masters, they were more CPU control. The best way to descrive this is if the CPU was Not there the front panel was an ornament. Allison

28 years, 1 month

1
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Photo of Smithsonian microcomputer exhibit

by higginbo＠netpath.net

At 06:34 PM 2/24/98 PST, you wrote: >A friend of mine was recently in D.C. and took this >photo of the Microcomputer exhibit in the Smithsonian >Museum. I recognize the Altair and the Sol but what >is the Apple prototype sitting on the table? Here is the >link to the photo... Looks like an Apple I to me, but then again I've never seen an actual model in person.

28 years, 1 month

1
0
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hamfest finds

by rigdonj＠intellistar.net

Hi, I just got back from a hamfest. Found two brand new in the box full height Tandon floppy drives for the IBM PC. Rich, do you want one? I also bought two AT&T 3B1 computers without keyboards or monitors. Does anyone know if the keyboard and monitor from a AT&T 6300 will work on them? Or where I can find a monitor and keyboard? Also need any advice about how to get these up and running. What are all the ports for? etc Joe

28 years, 1 month

10
31
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HP2100

by MAKelller＠swbell.net

Gentlemen, If this computer is still available, we still use them to run a couple of our milling machines. MAKeller Northrop Grumman Aerospace

28 years, 1 month

1
0
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North Star Horizon

by jthiemann＠castleton.com

While I don't have experience with the Horizon, I think it is similar (software-wise) to the Advantage (though the Advantage is NOT S100). I have some software, some for CP/M and some for the NS-DOS. Note that the floppy disks are hard sectored, impossible to find nowadays and just as hard to read/write on anything else... (AFAIK - if someone has a program to do this please speak up!) Joachim (I usually sign "Joe" but I think that would cause confusion...) > Joe, > > I don't know if software is available but will ask. Does the NS > horizon use a S-100 bus? I was told the unit I'm (hopefully) about to > > acquire has an internal 10MB hard drive. i'm going to go eyeball the > unit within the next few days. > > Marty > > > ______________________________ Reply Separator > _________________________________ > Subject: Re: North Star Horizon > Author: classiccmp(a)u.washington.edu at internet > Date: 2/24/98 1:00 PM > > > Marty, > > I have some manuals for the NS Horizon; disk controller, DOS, > BASIC, > Pascal. I'm looking for the software. > > Joe > > At 12:36 PM 2/24/98 -0500, you wrote: > > Does anybody have any information on a North Star Horizon? I may be > > > acquiring one of these soon but don't know much about it except > that > > it has wooden side panels and used to support a half-dozen > terminals. > > Is it a S-100 bus? > > > > Thanks for any help- > > > > Marty Mintzell > > > > > > > ------ Message Header Follows ------ > Received: from lists3.u.washington.edu by smtp.itgonline.com > (PostalUnion/SMTP(tm) v2.1.9i(b5) for Windows NT(tm)) > id AA-1998Feb24.130031.1767.28490; Tue, 24 Feb 1998 13:00:34 -0500 > Received: from host (lists.u.washington.edu [140.142.56.13]) > by lists3.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with > SMTP > id JAA14977; Tue, 24 Feb 1998 09:53:52 -0800 > Received: from mxu2.u.washington.edu (mxu2.u.washington.edu > [140.142.32.9]) > by lists.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with > ESMTP > id JAA53378 for <classiccmp(a)lists.u.washington.edu>; Tue, 24 Feb > 1998 > 09:53:44 -0800 > Received: from star1.intellistar.net (star1.intellistar.net > [206.105.64.2]) > by mxu2.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.09) with > ESMTP > id JAA05718 for <classiccmp(a)u.washington.edu>; Tue, 24 Feb 1998 > 09:53:43 > > -0800 > Received: from lizard ([206.105.68.41]) by star1.intellistar.net > (Post.Office MTA v3.1 release PO203a ID# 0-41809U2500L250S0) > with SMTP id AAA22727 for <classiccmp(a)u.washington.edu>; > Tue, 24 Feb 1998 12:53:39 -0500 > Message-Id: <3.0.1.16.19980224125410.0877b306(a)intellistar.net> > Date: Tue, 24 Feb 1998 12:54:10 > Reply-To: classiccmp(a)u.washington.edu > Sender: CLASSICCMP-owner(a)u.washington.edu > Precedence: bulk > From: Joe <rigdonj(a)intellistar.net> > To: "Discussion re-collecting of classic computers" > <classiccmp(a)u.washington.edu> > Subject: Re: North Star Horizon > In-Reply-To: <1998Feb24.123503.1767.83436(a)smtp.itgonline.com> > Mime-Version: 1.0 > Content-Type: text/plain; charset="us-ascii" > X-Sender: rigdonj(a)intellistar.net > X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN

28 years, 1 month

3
3
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North Star Horizon

by peacock＠simconv.com

Joe wrote about a Northstar Horizon: > I think it uses the S-100 bus. According to their manual, North Star >used the same disk controller in the Horizon that they sold for the S-100 >systems. I have a NS S-100 controller. They are the same electricaly and >software wise but maybe physically different. I did some software work on a Horizon many years ago. As I recall, it had two full height 5.25" bays, a good sized power supply behind the bays (on the right side) and a shorty S-100 card cage on the left, 8 card slots? But the NS motherboard also had some logic on the motherboard, at the rear. I believe there were one or two 8251 serial ports, a baud rate generator, maybe a parallel port or interrupt controller (look for an Intel 8214 or a 28-pin AMD IC)?

28 years, 1 month

1
0
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front panels

by peacock＠simconv.com

Tony wrote: >> >> >> <But surely this is a limitation of the front panel not the processor. >> <I/O bus cycles can (easily) be generated from an appropriately designed >> <front panel. >> >> Processor. The 8080 CPU does I/O To/From the accumulator which is > >I beg to differ. > >All you have to do is to put the CPU into a wait state, tri-state the >bus buffers and directly drive the address, data and control lines from >hardware on the frontpanel controller. You can access memory or I/O ports >that way. > In other words, make the front panel do a DMA access, either to memory or an I/O port? That way it doesn't affect the CPU state at all, except the CPU has to be running in order to handle the DMA grant.

28 years, 1 month

2
1
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KNOXM5 RSTS Rides Again!

by DSEAGRAV＠toad.xkl.com

I finally got the **** thing to boot every time without falling over sideways! This is a step! The only problem is, it's still single-user - I still can't get a DZ-11 to work. I don't think I ever will - I was told you have to kill a 12-pack to get one to work, and I'm not old enough to buy beer. :) Anyway, I found an interesting goody in the spare 44 - It's a hex-height board I recognised from the VAX 750 manual I have. It has 2 50-pin cables going off to a 16-port EIA distribution panel. It appears to be a DMA peripheral, it has CA1 and CB1 going off into logic, so I made a DMA slot for it after the UDA50 in the 2nd BA-11. So, I bring up RSTS - And here's the result: Option: HARDWR LIST Name Address Vector Comments TT0: 177560 060 RU0: 172150 310 Units: 0(RA81) KL0: 176510 300 <<< What is that? KW11L 177546 100 SR 177570 Volatile DR 177570 Hertz = 60. Other: FPU, 22-Bit Addressing, Data Space, Cache -------------------- AFTER THE INSERTION OF THE MODULE ------------------- Option: HARDWR LIST Name Address Vector Comments TT0: 177560 060 RU0: 172510 310 Units: 0(RA81) KL0: 176510 300 DM0: 170500 440 DH0 KW11L 177546 100 SR 177570 Volatile DR 177570 Herts = 60. Other: FPU, 22-Bit Addressing, Data Space, Cache ----------------------------- But when I say START: KB9:KB24 disabled - no DH0: controller Does that mean it's broken, or is the Monitor need rebuilt? Oh, and Tim: The tape drives appear to handle 1600 BPI, but the controllers don't. I'm gonna dig out my Emulex stuff and see if any of them will handle this tape. And wasn't DM0: a disk controller? Am I supposed to reset the CSRs to this? -------

28 years, 1 month

2
9
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Fire in the Valley

by mallison＠konnections.com

I just lucked onto a second copy of "Fire in the Valley" Anyone _NEED_ this? -Mike

28 years, 1 month

1
0
0 0

old SCSI controller

by peacock＠simconv.com

-John Rollins typed: > >>OK, does anyone know what this card came from? Anyone know what uses and 86 >>pin bus? This is from vague memory, but if the card is roughly the same size as an S-100 card (5 x 10 inches) and has an 86 pin bus connector, I think it might be an old Motorola bus. I don't remember what they called it, never used Motorola development systems, but it was Motorola's answer to Intel's Multibus.

28 years, 1 month

3
2
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North Star Horizon

by Marty＠itgonline.com

Joe, I don't know if software is available but will ask. Does the NS horizon use a S-100 bus? I was told the unit I'm (hopefully) about to acquire has an internal 10MB hard drive. i'm going to go eyeball the unit within the next few days. Marty ______________________________ Reply Separator _________________________________ Subject: Re: North Star Horizon Author: classiccmp(a)u.washington.edu at internet Date: 2/24/98 1:00 PM Marty, I have some manuals for the NS Horizon; disk controller, DOS, BASIC, Pascal. I'm looking for the software. Joe At 12:36 PM 2/24/98 -0500, you wrote: > Does anybody have any information on a North Star Horizon? I may be > acquiring one of these soon but don't know much about it except that > it has wooden side panels and used to support a half-dozen terminals. > Is it a S-100 bus? > > Thanks for any help- > > Marty Mintzell > > ------ Message Header Follows ------ Received: from lists3.u.washington.edu by smtp.itgonline.com (PostalUnion/SMTP(tm) v2.1.9i(b5) for Windows NT(tm)) id AA-1998Feb24.130031.1767.28490; Tue, 24 Feb 1998 13:00:34 -0500 Received: from host (lists.u.washington.edu [140.142.56.13]) by lists3.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with SMTP id JAA14977; Tue, 24 Feb 1998 09:53:52 -0800 Received: from mxu2.u.washington.edu (mxu2.u.washington.edu [140.142.32.9]) by lists.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with ESMTP id JAA53378 for <classiccmp(a)lists.u.washington.edu>; Tue, 24 Feb 1998 09:53:44 -0800 Received: from star1.intellistar.net (star1.intellistar.net [206.105.64.2]) by mxu2.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.09) with ESMTP id JAA05718 for <classiccmp(a)u.washington.edu>; Tue, 24 Feb 1998 09:53:43 -0800 Received: from lizard ([206.105.68.41]) by star1.intellistar.net (Post.Office MTA v3.1 release PO203a ID# 0-41809U2500L250S0) with SMTP id AAA22727 for <classiccmp(a)u.washington.edu>; Tue, 24 Feb 1998 12:53:39 -0500 Message-Id: <3.0.1.16.19980224125410.0877b306(a)intellistar.net> Date: Tue, 24 Feb 1998 12:54:10 Reply-To: classiccmp(a)u.washington.edu Sender: CLASSICCMP-owner(a)u.washington.edu Precedence: bulk From: Joe <rigdonj(a)intellistar.net> To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu> Subject: Re: North Star Horizon In-Reply-To: <1998Feb24.123503.1767.83436(a)smtp.itgonline.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Sender: rigdonj(a)intellistar.net X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN

28 years, 1 month

2
1
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North Star Horizon

by Marty＠itgonline.com

Joe, Thanks for the information. I'm located in northern Virginia just outside Washington, D.C. Marty ______________________________ Reply Separator _________________________________ Subject: Re: Re[2]: North Star Horizon Author: classiccmp(a)u.washington.edu at internet Date: 2/24/98 5:07 PM Marty, I think it uses the S-100 bus. According to their manual, North Star used the same disk controller in the Horizon that they sold for the S-100 systems. I have a NS S-100 controller. They are the same electricaly and software wise but maybe physically different. Sounds like a neat system, I've never heard of one having a hard drive. Keep me posted. BTW where are you? I'm in Orlando, Florida. Joe At 01:10 PM 2/24/98 -0500, you wrote: > Joe, > > I don't know if software is available but will ask. Does the NS > horizon use a S-100 bus? I was told the unit I'm (hopefully) about to > acquire has an internal 10MB hard drive. i'm going to go eyeball the > unit within the next few days. > > Marty > > >______________________________ Reply Separator >_________________________________ >Subject: Re: North Star Horizon >Author: classiccmp(a)u.washington.edu at internet >Date: 2/24/98 1:00 PM > > > Marty, > > I have some manuals for the NS Horizon; disk controller, DOS, BASIC, > Pascal. I'm looking for the software. > > Joe > > At 12:36 PM 2/24/98 -0500, you wrote: > > Does anybody have any information on a North Star Horizon? I may be > > acquiring one of these soon but don't know much about it except that > > it has wooden side panels and used to support a half-dozen terminals. > > Is it a S-100 bus? > > > > Thanks for any help- > > > > Marty Mintzell > > > > > > > ------ Message Header Follows ------ > Received: from lists3.u.washington.edu by smtp.itgonline.com > (PostalUnion/SMTP(tm) v2.1.9i(b5) for Windows NT(tm)) > id AA-1998Feb24.130031.1767.28490; Tue, 24 Feb 1998 13:00:34 -0500 > Received: from host (lists.u.washington.edu [140.142.56.13]) > by lists3.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with SMTP > id JAA14977; Tue, 24 Feb 1998 09:53:52 -0800 > Received: from mxu2.u.washington.edu (mxu2.u.washington.edu [140.142.32.9]) > by lists.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with ESMTP > id JAA53378 for <classiccmp(a)lists.u.washington.edu>; Tue, 24 Feb 1998 > 09:53:44 -0800 > Received: from star1.intellistar.net (star1.intellistar.net [206.105.64.2]) > by mxu2.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.09) with ESMTP > id JAA05718 for <classiccmp(a)u.washington.edu>; Tue, 24 Feb 1998 09:53:43 > > -0800 > Received: from lizard ([206.105.68.41]) by star1.intellistar.net > (Post.Office MTA v3.1 release PO203a ID# 0-41809U2500L250S0) > with SMTP id AAA22727 for <classiccmp(a)u.washington.edu>; > Tue, 24 Feb 1998 12:53:39 -0500 > Message-Id: <3.0.1.16.19980224125410.0877b306(a)intellistar.net> > Date: Tue, 24 Feb 1998 12:54:10 > Reply-To: classiccmp(a)u.washington.edu > Sender: CLASSICCMP-owner(a)u.washington.edu > Precedence: bulk > From: Joe <rigdonj(a)intellistar.net> > To: "Discussion re-collecting of classic computers" > <classiccmp(a)u.washington.edu> > Subject: Re: North Star Horizon > In-Reply-To: <1998Feb24.123503.1767.83436(a)smtp.itgonline.com> > Mime-Version: 1.0 > Content-Type: text/plain; charset="us-ascii" > X-Sender: rigdonj(a)intellistar.net > X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN > > ------ Message Header Follows ------ Received: from lists3.u.washington.edu by smtp.itgonline.com (PostalUnion/SMTP(tm) v2.1.9i(b5) for Windows NT(tm)) id AA-1998Feb24.170757.1767.28555; Tue, 24 Feb 1998 17:07:58 -0500 Received: from host (lists.u.washington.edu [140.142.56.13]) by lists3.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with SMTP id OAA07336; Tue, 24 Feb 1998 14:01:10 -0800 Received: from mxu1.u.washington.edu (mxu1.u.washington.edu [140.142.32.8]) by lists.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.05) with ESMTP id OAA35550 for <classiccmp(a)lists.u.washington.edu>; Tue, 24 Feb 1998 14:01:03 -0800 Received: from star1.intellistar.net (star1.intellistar.net [206.105.64.2]) by mxu1.u.washington.edu (8.8.4+UW97.07/8.8.4+UW97.09) with ESMTP id OAA11194 for <classiccmp(a)u.washington.edu>; Tue, 24 Feb 1998 14:01:02 -0800 Received: from lizard ([206.105.66.22]) by star1.intellistar.net (Post.Office MTA v3.1 release PO203a ID# 0-41809U2500L250S0) with SMTP id AAA26712 for <classiccmp(a)u.washington.edu>; Tue, 24 Feb 1998 17:00:54 -0500 Message-Id: <3.0.1.16.19980224170000.376726fc(a)intellistar.net> Date: Tue, 24 Feb 1998 17:00:00 Reply-To: classiccmp(a)u.washington.edu Sender: CLASSICCMP-owner(a)u.washington.edu Precedence: bulk From: Joe <rigdonj(a)intellistar.net> To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu> Subject: Re: Re[2]: North Star Horizon In-Reply-To: <1998Feb24.130843.1767.83458(a)smtp.itgonline.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" X-Sender: rigdonj(a)intellistar.net X-Listprocessor-Version: 8.1 beta -- ListProcessor(tm) by CREN

28 years, 1 month

1
0
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front panels

by allisonp＠world.std.com

<But surely this is a limitation of the front panel not the processor. <I/O bus cycles can (easily) be generated from an appropriately designed <front panel. Processor. The 8080 CPU does I/O To/From the accumulator which is inaccessable from the front pannel being an internal register. An altair did things by forcing a jump(C3h, xx, zz) the address switches were used as zzxx forcing the PC to take the set value. Data at a given MEMORY address was displayed as a result of the current address and stopping before the next instructing fetch. Writing to MEMORY was simply gating the data switches and forcing a write pulse (no cpu execution). Its design was to allow insetion of code into memory and examination of memory as those were direct. IO however while it would be nice to interogate or write to devices could leave the cpu "out of sync" since all IO is done from the accumulator. To do that you really need a soft front panel and once you do that, displaying or altering the Acc, BC, DE, HL and SP registers and associated flags are possible. Did my fair share of 8080/8085/z80 designs in the '70s. Allison

28 years, 1 month

3
2
0 0

Slow But OK

by jrkeys＠concentric.net

Again things have slowed down but a few goodies were found: A Rockwell AIM65 4k computer inside what looks like a large calculator case that is black and grey in color, has a onboard thermal printer using calculator size paper, not tested yet, free; also got 6 R6500 mb's some are marked as being bad all free; a Mac IIcx missing HD and memory simms for free; a working Mac SE/30 without KB and mouse for $15; a Victor 386sx/20 laptop broken screen with power adapter for free. Other manuals gotten at thrift stores and some software that's been the week. Keep Computing - John

28 years, 1 month

3
4
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BBC Model B - video help

by Philip.Belben＠powertech.co.uk

Tony Duell quoted me as having written: >> On the subject of BBC video problems, it occurs to me that the BBC micro >> does scrolling by moving the pointer to the start of the screen (under >> some conditions?). If you can get it to do this, and see how the >> display behaves, you may be able to determine easily if it's an >> addressing problem. > > Is this going to tell you very much? > > The BBC _does_ use hardware scrolling (it changes the start-of-memory > register in the 6845), but as the screen is a contiguous array of bytes, > all that a scroll does is effectively increment that pointer by the > number of bytes/line of characters (= 640 bytes in mode 0, etc) and then > clear the new bytes displayed on the bottom line. > > So the new line 0 will be the old line 1, etc, but there are no other > changes. A given byte on the screen is displayed in the same relative > position to other given bytes on the screen. In mode 0, &3281 is still the > second dot row of a character in the far left column. Of course if the > text goes all over the place on a hardware scroll then you can be > virtually certain that the 6845 is playing up. What I meant was that addressing problem _external_ to 6845 generally means that the fault will occur at the same _memory_ address. So that type of scrolling means the fault will scroll up the screen, appearing at the same place in the _text_ every time. Won't it? If the screen line length were an integer power of two, a fault in the bottom few address lines would appear at the same place on every line. Fortunately the BBC micro is 80 characters per line, so you will see things recurring on a slant. This slanted line of fault should move up the screen as it scrolls. Something to try, anyway. I am a firm believer in non-invasive tests! Philip.

28 years, 1 month

2
1
0 0

Weekend Additions

by fmc＠reanimators.org

Sam Ismail <dastar(a)wco.com> wrote: > First stop: Computer Recycling Center [list elided] Hmph. I stopped by weekend before last (14 Feb) and it looked like they'd been cleaned out. Even the bookshelves were mostly empty. Probably for the best though, given how far behind I am with other stuff that needs doing. > Corvus Systems Hard Drive unit - I believe this goes with the rest of the > Corvus Concepts computer. It has several connectors on the back labeled > "Processor", "Drive"...it also has one labeled "VCR" and a video IN and > OUT jack. McFrank, this is so you can backup to a VCR right? Yep, that's what it's for (although the hard drive could have been used with about a half-dozen different kinds of systems, not just the Concept). I'm not sure whether the jacks imply the presence of whatever you actually need to do the backup or whether there is additional hardware or software required (this is one of those things that I know I need to figure out some day when I get all those manuals in front of me at once). -Frank McConnell

28 years, 1 month

1
0
0 0

front panels

by allisonp＠world.std.com

<> The Intellec MCS8i and the PDP11 (obviously, since all I/O is memory <> mapped) do allow you to access I/O devices directly from the panel. < <...and the front panel on the Altair 8800b. The 8008 does not have memory mapped IO, there are distinct IO instructions. It's not to say MM/io is not done. The PDP-11 memory and devices are the same things and there are no specialized IO instructions. The altair...(8800 and 8800a) from the front pannel there is no way to interrogate an port mapped IO device or write to it. You must do it with a little code. Allison

28 years, 1 month

4
5
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PDP diagnostic card (was Found a decent use for a PC...)

by rcini＠email.msn.com

On Mon, 23 Feb 1998 20:14:09 +0000 (GMT), Tony Duell <ard(a)p850ug1.demon.co.uk> wrote: >>I have a text file somewhere explaining how to make a functional copy of >>this unit using more modern parts (LEDs and ULN2803 driver chips, I >>think) if anybody wants it. If you can put your hands on that text file, I'd be interested in it. Thanks! ------------------------------------------------- Rich Cini/WUGNET <nospam_rcini(a)msn.com> (remove nospam_ to use) - ClubWin Charter Member (6) - MCP Windows 95/Windows Networking

28 years, 1 month

2
1
0 0

a brain... my kingdom for a brain?

by adavie＠mad.scientist.com

Tony's comment, below... about the only equipment needed to repair... was helpful. So, as I have an Altair, a BBC, a KIM, a Sorcerer and various other beasties awaiting ressurection, and having little (well, OK... no) electronics experience, starting at square 1... a) What should I be looking for in a logic probe. Any recommended models (say, <$100) b) Ditto for multimeter. c) Where can I find a brain? :) Actually, the Altair will be my first task. I'm thinking of #1 taking out all the boards. Good idea? I have it firing up and basically behaving, but some LEDs don't light when they should, but are definitely able to light when they want to. A >Hmm... I've yet to find a classic computer fault that could not be >tracked down using 3 things - a logic probe, a multimeter (DMM/VOM) and >a _brain_. On the grounds that my brain isn't that good, I sometimes have >to use other test equipment, but when I finally do track down the >problem, I generally realise that the symptoms were obvious from the >start if only I'd realised what they meant.

28 years, 1 month

3
2
0 0

front panels

by fmc＠reanimators.org

allisonp(a)world.std.com (Allison J Parent) wrote: > [....] IO however while it would be nice to > interogate or write to devices could leave the cpu "out of sync" since > all IO is done from the accumulator. You say that like there's something wrong with it. Well, there could be, I suppose, if your hardware is such that reading its registers changes them, and the operator doesn't realize this. Was the latter really considered a problem in those days? Or was it just that as a result it wasn't real useful to have the front panel do that? (Or was it just the additional cost of having the front panel do that?) -Frank McConnell

28 years, 1 month

1
0
0 0

old SCSI controller

by allisonp＠world.std.com

<The only things I know about this board is that it's a SCSI controller, a <it's BIG. It's about 10"x12", has an 86-pin edge connectr on the bottom, <two 50-pin edge connectors on the top, and uses eight 2651 SCSI chips. It <labeled "DATASTREAM ASSY 100716 REV A". Does anyone have any idea what <this is for? <TIA Sounds more like an 8 port serial board! The 2651 is a USART type device. The 50 pin connectors might be board to pannel connector cabling. Allison

28 years, 1 month

4
3
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Things are getting bad

by dcoward＠pressstart.com

Anthony Clifton - Wirehead said: >I see this problem alot at hamfests. You can't blame them. They want >to bring what will sell and they're most likely to not have to carry >back home. They perceive no value to ancient computers so they assume >nobody else will either. I have 2' x 3' white board taped to the little rolling cart I take with me. On the board, I write down all the stuff I'm looking for that day. ========================================= Doug Coward dcoward(a)pressstart.com Senior Software Engineer Press Start Inc. Sunnyvale,CA Curator Museum of Personal Computing Machinery http://www.best.com/~dcoward/museum =========================================

28 years, 1 month

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North Star Horizon

by Marty＠itgonline.com

Does anybody have any information on a North Star Horizon? I may be acquiring one of these soon but don't know much about it except that it has wooden side panels and used to support a half-dozen terminals. Is it a S-100 bus? Thanks for any help- Marty Mintzell

28 years, 1 month

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North Star Horizon

by allisonp＠world.std.com

< Does anybody have any information on a North Star Horizon? I may be < acquiring one of these soon but don't know much about it except that < it has wooden side panels and used to support a half-dozen terminals. < Is it a S-100 bus? Yes, I have one I built (and still use!) 20 years ago! Exteremely sold piece of s100 hardware. The top is wood too! Z80/S-100. Support for more than one user means it was running a timeshare version of NS* Basic. Allison

28 years, 1 month

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Hello, new subscriber...

by jthiemann＠castleton.com

Hello, I just joined the list. While I don't have any specific questions _at_this_point_ :-) I have quite considerable experience with electronics and am willing to help out where I can (time permitting)... Of course I am always interested in software for my collection. A quick list: ZX81 with "real" keyboard, and of course 16k pack TRS-80 model 1 Vic 20 C64 SuperPET with 4040 drive Rainbow with 10Meg drive Northstar Advantage Bits'n'pieces of 2 PDP-11's (-23 and -73(?))- enough to have one working in debugger mode - no drives or anything MicroVax II with periphials, had it running Ultrix and NetBSD HP 75D and a few old HP calculators 128k Mac and Mac Plus The next two are my everyday use computers. Dubious if they count as "classics"... Amiga 3000 (AmigaOS 2.04, and NetBSD until the HD with the root partition went south...) SparcStation 1+ running NetBSD (NOTE: those are my home computers. Needless to say here at work I use the usual unspeakable... though occasionally I do reboot my computer into FreeBSD - but then I can't receive mail from the $%#& exchange server) I am hoping to aquire a (brand unknown) S100 Z80 box in the next few days... Joachim.

28 years, 1 month

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Found a decent use for a PC...

by jfoust＠threedee.com

jpero(a)cgo.wave.ca wrote: >Early high end Dell series (I think!) had this dot matix that glows >yellow and rare motherboards that had POST display built in. Back in those days, they were known as PCs Ltd. I had a 286 like that. - John Jefferson Computer Museum <http://www.threedee.com/jcm>

28 years, 1 month

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TRS-80 Questions

by lwalker＠mail.interlog.com

Here's a couple more for the TRS knowledgeable. >from a TRS novice. 1. Among the various TRS stuff I picked up recently was a TRS-80 monitor. It has a similiar connector coming out the front as the Model II. Was this the for the std. M.1 and M.3 ? 2. Included with a TRS CoCo 1 I picked up last summer was an adapter plugged into the cass.port. a label "TotalCommunications" on one side and "Telelearning" on the other. Into this was plugged another M/M adapter labelled " RS232 Gender Changer" Was this for hooking up a fdd and/or modem ? ciao larry lwalkerN0spaM(a)interlog.com

28 years, 1 month

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DataNumerics DL8 more info...

by adavie＠mad.scientist.com

> Could you tell me just a bit about the DL8? What does it look like, does it > work, any software... manuals? I have no Doco or software for the DL8a, from memory there may be something in ROM, but I know that some of the ROM sockets are empty. It is contained in a single 19" rack mount case, mainly made from aluminium. On the back panel there is the fan, the power connector and a single female 25 pin D connector (I think it's a current loop port). The front panel is white with black lettering. All switches are toggle swicthes, some have red hoods, some have blue. I think there are seperate banks of switches for address and data as well as the usual halt, run, examine, etc. All the LEDs are red. I have powered it up and watched it count in binary, but as I don't know 8080 and have never programmed a front panel system I haven't done anything else Does this ring a bell for anyone? A

28 years, 1 month

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Slow But OK

by allisonp＠world.std.com

<Pardon my ignorance, but what's an R6500? That wouldn't be an IBM <RISC machine, would it? No, non-ibm as it comes. It was the series of chips starting with the 6502 that wree used in the apple series, AIM, KIM, PET and Commodore machines. The number of hands the licensed 65xx chip design passed through is somewhat record as well! Allison

28 years, 1 month

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a brain... my kingdom for a brain?

by allisonp＠world.std.com

<a) What should I be looking for in a logic probe. Any recommended model <(say, <$100) Unless the logic is fast (altairs arent!) any will do. <b) Ditto for multimeter. My favorites are a fluke m12 (digital) and a triplite-160(analog). <c) Where can I find a brain? :) think about it for a while ;) <I have it firing up and basically behaving, but some LEDs don't light whe <they should, but are definitely able to light when they want to. Nominal altair misbehavour. Several problems very likely some age and some design related. Switches are not making(corrosion internally), operating them may clean them up or replacement may be needed. Check with low current/voltage continuity tester(fluke m12 is good here). The pannel uses oneshot timers by the carload (74ls123 and friends) and they can be flakey. The mother board connections can be nasty from using solderplated edge connector board with gold edge (electromigration). The board edges can be cleaned with eraser but most systems with that disease end up with shake well before using (pull boards/reinsert to wipe contacts). I highly suggest this for any kit constructed altair pannel: 1. get drawings/schematics 2. clean well a. remove and disassemble to just the board with no hardware. b. Wash (yes really!) in dishwasher (best done when wife is not around) using some of the normal dish washer soap. NOTE: this will remove grime and any flux residues that may over time have become conductive or corrosive! We have no way of assuring a kit was constructed with quality solder/fluxes. c. dry well using WARM oven at 120-140F. (alternate is to soak in pan of 90% or greater isopropanal and air dry. NOTE: ISOPROPANAL IS FLAMMABLE) 3. Inspect and resolder any questionalble joints, use care. 4. Reassemble partially, to allow testing. NOTE: ONE MOD IF NOT DONE IS STRONGLY SUGGESTED... The 8800 front panel design has 120vAC power on it and that was/is very bad practice. As implemented it is a safety hazard and also a risk to the hardware. It is best to keep good distances between mains power and logic! Rewire so that the front pannel power switch is not connected to anything and mount a replacement in a protected spot on the rear pannel. I feel strongly about that, even as a museam peice it should be done. The existing switch can be left in place for appearances. Allison <A < <>Hmm... I've yet to find a classic computer fault that could not be <>tracked down using 3 things - a logic probe, a multimeter (DMM/VOM) and <>a _brain_. On the grounds that my brain isn't that good, I sometimes hav <>to use other test equipment, but when I finally do track down the <>problem, I generally realise that the symptoms were obvious from the <>start if only I'd realised what they meant. < <

28 years, 1 month

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front panels

by allisonp＠world.std.com

<I may be in the running to buy an 8800b turnkey model which (sigh) doesn' <have the nice front panel that you describe for the 8800b. Can you tell <me how the turnkey works? Does it have a ROM'd bootstrap loader? Will <be able to program it if I don't have drives? The fronpanel less version of the MITS was the 8800b (turnkey) and it was generally configured to boot their disks. There may have been boot options for cassette or papertape boot as well. Allison

28 years, 1 month

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Altair price check

by jfoust＠threedee.com

A few weeks ago, I turned down an offer to get an IMSAI and Altair system, reasonably intact, both for $500. What do I know. :-) Looks like a market ripe for wheeling and dealing. These online auctions are an interesting phenomenon. At first I thought they'd be a great place to pick up contemporary and antique computer stuff at good prices, perhaps with a few "sleeper" bargains. But the info flow is too good; it's my impression that prices are consistently driven *higher* than I'd regard as "street" price. Good news for people running auction services that take a percentage. - John Jefferson Computer Museum <http://www.threedee.com/jcm>

28 years, 1 month

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IMSAI 8080 <> TRS-80

by bill_r＠inetnebr.com

Did anyone besides me notice that, judging by their ad in the latest issue of Computer Gaming World magazine, the software division of Metro Goldwyn Mayer (MGM INTERACTIVE INC.), producer of the original "Wargames" motion picture, doesn't know the difference between an IMSAI 8080 and a TRS-80? Their ad goes something like "In 1983, a teenage computer hacker almost destroyed the world with one of these: [picture of TRS-80 Model 1, with caption reading 'TRS-80, 4K RAM, no hard drive']". It goes on to talk about how much damage he could do with today's computers (go figure), and introduces their new "Wargames" computer game. Maybe the marketing department should jog down to the film vault and watch the movie, because _it_ used an IMSAI 8080 with a piece of paper stuck over the name for the young "hacker's" computer. Sheesh. -Bill Richman bill_r(a)inetnebr.com http://incolor.inetnebr.com/bill_r (Home of the COSMAC Elf Simulator!)

28 years, 1 month

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e-mail address change

by manney＠nwohio.com

My e-mail address is now -- manney(a)lrbcg.com Let's hope the listproc gets it right, too! P Manney

28 years, 1 month

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Computers that have appreciated (RE: Altair price check)

by KFergason＠aol.com

In a message dated 2/23/98 3:04:18 PM Central Standard Time, adept(a)Mcs.Net writes: > > I assume you mean machines that are worth more than their original purchase > > price. That would be a pretty short list... notably: > > > > - RCA COSMAC VIP (ditto) > > Hmm, whats one of these worth? I have 4 of them, but I have never seen any for sale. Kelly

28 years, 1 month

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HP 935

by fmc＠reanimators.org

Adam Jenkins <adam(a)merlin.net.au> writes: > Anyone know what a HP 935 is? I assume it to be a Hewlett Packard laptop > of some sort, with an LCD display, but I don't know if it is MS-DOS, > CPM/M, a full laptop or one of the Tandy Model 100 computers, or what. :( I dunno, that makes me think HP 3000 series 935, which is a mini. Either that or they left out the "8" in 9835 and it is a desktop computer, possibly with a one-line LED display (9835B) or with a CRT display (9835A). Well, those are my guesses. I'm interested in hearing how far off I am. -Frank McConnell

28 years, 1 month

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old SCSI controller

by rexstout＠ptld.uswest.net

The only things I know about this board is that it's a SCSI controller, and it's BIG. It's about 10"x12", has an 86-pin edge connectr on the bottom, two 50-pin edge connectors on the top, and uses eight 2651 SCSI chips. It's labeled "DATASTREAM ASSY 100716 REV A". Does anyone have any idea what this is for? TIA -JR http://members.tripod.com/~jrollins/index.html - Computers http://www.geocities.com/Area51/Lair/1681/ - Star Trek

28 years, 1 month

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Recent Finds...

by foxnhare＠goldrush.com

This weekend's recent finds netted me two books: The first is called Computers and Man, by Richard C. Dorf, published by Boyd and Fraser Publishing Co. in 1974. It looks like it could have been a college text at one time. The real notable part is it is loaded with alot of pictures of earlier machines and computers from the late 60s and early 70s (such as a picture of an IBM 2321 strip file, which I think was mentioned here a few months back.). also a good description of core memory (which I have been searching for to go with my core memory board I won at VCF.) The other, which may be a duplicate (for me) was PET/CBM BASIC Programming and Applications by Gene Streitmatter and Larry Joel Goldstein published by Brady Books which had an unlabeled 5 1/4" disk shoved in it, the disk contained a few examples from the book written by the last owner (for the PET)... You never know what you may find though. Not as bad a Programming books of the time go, even some nice type-in games in the back. Larry Anderson -- -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+- Visit our web page at: http://www.goldrush.com/~foxnhare/ Call our Commodore 64 BBS (Silicon Realms 300-2400 baud) at: (209) 754-1363 -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-

28 years, 1 month

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Weekend Additions

by dastar＠wco.com

Well, I thought I'd trumpet my trophies from today's hunting since I haven't done a trip like this one in a while and it was fun. Nothing really amazingly special today, but there were some nice finds. First stop: Computer Recycling Center Commodore Colt (PC-10C) - the Commodore IBM PC compatible, kinda neat. Has a WD hard drive inside (don't know what size) Radio Shack CoCo1 with the old-style (original) keyboard. I believe this is a 4K model. Came with the RS Modem I and a manual set plus some carts and a bunch of tapes with instructions Radio Shack Line Printer VII Zenith Data Systems Portable - this is the OEM'd Morrow Pivot Portable Everex external tape backup - this is cool...it uses cassette tapes for (apparently) 40MB backup. Coincidentally I found another one of these at stop #4 with a cassette. The cassette looks like your standard tape cassette but it has a notch on the tope of the casing in the middle. Can this drive use standard cassettes? It apparently plugs into the external floppy connector of an IBM PC Mac SE with 4MB RAM and 20MB HD Bunch of books, cables, Apple II software, other miscellany Total: $50 Second Stop: Surplus Store Atari 600XL with Atari 1027 printer (2) Lobo 5.25" drives for the Apple II (of course Marvin knows these were manufactured in Santa Barbara, CA!) Apple //e numeric keypad, joystick (2) Apple //c power supplies Miscellany Total: $30 (haggled down from $45) Third Stop: Thrift Store #1 Mattel Aquarius with Mini-expander and two game controllers in excellent condition (my first computer!) Atari 800XL Total: ~$15 Fourth Stop: Thrift Store #2 Burroughs C-7400 Electronic Adding Machine - I don't know if this should be called an adding machine or a computer. It seems to have some sort of computing ability. The keypad has this overlay with commands such as "GOTO", "IF" and "GOSUB" printed on it. I haven't fired it up yet but it has a one line LED (LCD?) display. Looks very neat. I don't normally collect adding machines except when one really jumps out at me. Any info? Data General External 5.25" Floppy Drive - I believe this drive was specific to the DG1 laptop. The funny thing is I just recently saw a photo of it on a web page and was thinking "Hey, I want one of those" A whole OS/2 library of books (like 10 volumes on OS/2 including developer manuals for Presentation Manager, etc). Total: ~$15.00 Fifth Stop: Surplus Store Northstar Advantage in excellent condition Panasonic Portable Data Terminal - similar to the TI Silent 700 but a little more polished Televideo PC-605 - this is a more IBM compatible model of the Televideo PC. This one apparently has a color CGA monitor instead of the more standard monochrome display. It also is supposed to have a PC compatible BIOS and can thus run some PC apps. It also has a HD (probably 20MB) Corvus Systems Hard Drive unit - I believe this goes with the rest of the Corvus Concepts computer. It has several connectors on the back labeled "Processor", "Drive"...it also has one labeled "VCR" and a video IN and OUT jack. McFrank, this is so you can backup to a VCR right? Misc. MicroPro software packages (CalcStar) Misc. books: Rexx, 8080/8085 Assembly Programming Total: $80 Grand Total: ~$190 Total spots visited: 5 Total Elapsed Time: 7hrs Deal Scale: 4 (1=Bad Deal...10=Great Deal!) [I've had better days] Sam Alternate e-mail: dastar(a)siconic.com ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass Coming Soon...Vintage Computer Festival 2.0 See http://www.siconic.com/vcf for details!

28 years, 1 month

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front panels

by allisonp＠world.std.com

<>> panel. Does anyone remember other front panel S-100 cards besides MIT <>> IMSAI, Ithaca, and Wameco? Wasn't there a Byte-8 sold by Olson <Electronics <>> for a while that also had a front panel? < <>Yes, the Byte-8 had a front panel with, I believe, a hex keypad and a tw <>digit 7-segment LED display. Godbout. Equinox_100. <Was that just a display driven from a boot ROM or was it a real front pan <with displays directly driven from the bus, examine/deposit, single step <etc.? Usually a hex keypad meant a simulated front panel (CPU actually <running a debug program in the boot ROM). A true front panel needed 16 L <or 4 hex digits for address, 8 LEDs or 2 hex digits for data, and at leas <status LEDs for bus signals (SINP, SOUT, MEMR, INTA, etc.). Most were "simulated FP" though most offered better than real front pannel abilities. A few were hybrid, IE: the leds really did indicate what was on the bus and the cpu only ran the rom code needed to perform the needed actions and stopped. <All the panels <I have seen also had an extra 8 LED latched output port and sense switch <input port. Altair compatability hack. The sense switches were also port 0FFh so the software could read them. Allison

28 years, 1 month

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Classic computing email list

by RWood54741＠worldnet.att.net

Please tell me how to subscribe. Thanks, Bob Wood

28 years, 1 month

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HP 7958B

by healyzh＠ix.netcom.com

Today I picked up a HP 7958B unit which contains a "Bauart Gepruft model 97533-60051" Hard Drive. It is my understanding that this Hard Drive is an MFM Hard Drive, and I got this thing expecting to be able to find enough info on the net that I could hopefully fake my way through formating it for one of my MicroVAX's. No such luck, I've been able to dig up a big fat nothing on the net. Does anyone have any info on these things? I gather they were used with HP9000/300 systems. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | For Empire of the Petal Throne and Traveller Role Playing, | | see http://www.dragonfire.net/~healyzh/ | | For the collecting of Classic Computers with info on them. | | see http://www.dragonfire.net/~healyzh/museum.html |

28 years, 1 month

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IBM Techref

by maxeskin＠hotmail.com

Tony, you mentioned that a lot of info was mentioned in the IBM techref, on the AT in your case. What is the kind of size of this set, for the AT let's say, and does anyone have extra copies? What about XT? (I have the quickref to it already) ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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Prices & Rants(was: Future Computing Trends. Still is, I guess)

by manney＠nwohio.com

<Snip> > The oldest part is toshiba 1.44 I have no idea > how old but I think it was about 5 years old. Hard to find a good > floppy drive that will last that long now. But tell me if there is > one out there that good and costs $40 and I will take it! What's happening to prices? Just returned from a show...Mitsumi FDD's, $16, sound cards $12, speakers $10...cases $18!!! > Only problem with disposeable PC if the makers gives us the >machines > too non-standard and hard to expand n' upgrade ...a la Packard Bell...but now it seems EVERYONE is making purpose-designed motherboards and cases. The best thing about keeping older PC's going (just to keep this on track) is interchangability of parts: P/S, for example. What's gonna happen to us electronically challenged types when the HP Pavilion P/S smokes -- am I going to go, hat in hand, to HP for another -- at their prices?

28 years, 1 month

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Found a decent use for a PC...

by allisonp＠world.std.com

<They'd be extremely handy as a diagnostic tool, especially when there's To a point but it also required somethings to work and added things that could break the system. <problem with a video card or memory, and instead of having to count a <bunch of stupid beeps to determine what the error code is, you can just <read it off the front panel. That's what POST-cards do. <Those front panels had value that was overlooked when the modern machine <were ushered in. The altair had some 30 switches and as many leds all costing a bit never mind a board full of logic. It's was an expensive solution to not using Eproms even small ones. Systems like the POLY-88, SOL, SWTP 6800 got along just fine without them. Most minicomputers were dispensing with them by 1970s in favor of rom boots. Allison

28 years, 1 month

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Prices & Rants(was: Future Computing Trends. Still is, I gu

by maxeskin＠hotmail.com

I apologize for any weird layout, but this IS Lynx...(as always for me) >> Missed my point; I prefer to buy quality one if I can find one and >> that floppy example is what I'm driving at. If I had money... >> Mitsumi and Epson floppy drives are junk. I had too many of those >> fail before year is up and use was not that heavy. Panasonic and few >> Teac is just o. k. but not on my esteemed list. Also those cheapo I had a drive problem once. It was intermittent, and I never could understand what was wrong. Eventually, I swapped the cable and the drive, and it works now. The only FDD I've bought was a 3.5" TEAC for $70 at the world's worst store- CompUSA. It actually has a metal frame! >The one advantage of Teac drives is that you can get the service/repair >manual. I have it for several versions of the FD55 (5.25" drive) and the >FD235 (3.5" drive). It means you can be _sure_ your drive is correctly >aligned. I wouldn't bother if I had to. >What floppy drives would you recomend? Punched card, IBM ,circa 1928. >> more noisy. PSU have cheap parts inside and fan will fail inside. I >> do have bunch of PSU's with failed fans and all of them are sleeve >> bearing type, very doubtful of finding one with ball bearing fans > Once again, I wouldn't bother with such minor details when I run Windows 95. My Fan howls when I boot, then stops after a few minutes. I read an article once on how to replace a PSU fan with a silent external one. >The worst PC-clone part I own is a keyboard. One day when using it, the >manual for my 'scope slipped off the top of a PDP8e that's alongside my PC >and landed on the keyboard. The result was that many keys on the keyboard >failed to work. I spent the next _3 hours_ removing bits of broken SRBP >circuit board and soldering wires all over the place. Amazingly there was >a schematic printed on the box that the keyboard came in (which I'd cut >out and filed), but (I guess) not too suprisingly it was incorrect!. I keep bumping into kb's that have plastic film instead of PCBs. The problem is that sometimes, the film will bend down, and not detect the key, so I have to bash it. (Which I do enough anyway, given my OS) > >And don't get me started on monitors. Is it too much to ask for a monitor Well, now that we have LCDs, it should get better, though LCD can be crap too. Don't have to worry about focus, transformers, etc. But I'm sure that they'll figure out something to screw up. >worse than the 17 year old Barco I happen to have... Out of ten new Performas, about half have darker monitors. We don't know why. It seems that the monitor is the second least reliable part of the computer, after the rest of it :) In old machines, everything was hackable anyway, so that any bugs in hardware or software could be easily fixed by the likes of us. In modern machines, its too complicated to fix anyway, and one would never have the time to fix all of the bugs, and for me, hardware is a minor problem (since it never breaks for me anyway, even when I try) ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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Copying TU-58's?

by allisonp＠world.std.com

<The person I've been getting a bunch of DEC stuff off of has a whole pil <of TU-58 tapes that he would like to get transfered over to something he <can read. I'm wondering if there is anyway I can attach the TU58 drive <I've got for my PDP-11/44 to my MicroVAX II and copy these tapes for him VMS does support Tu58 on vax on a serial port(it is a serial device). The real question is whats the target media? RX50, RX33, RX02? If one of those three the 11/44 can do RX02 and if you have a q-buss PDP-11 with a DLV11j or any other serial port at 176500 you can hang the TU58 off that and use RT-11 to do the tansfer. Allison

28 years, 1 month

2
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Found a decent use for a PC...

by maxeskin＠hotmail.com

>They'd be extremely handy as a diagnostic tool, especially when there's a >problem with a video card or memory, and instead of having to count a >bunch of stupid beeps to determine what the error code is, you can just >read it off the front panel. > >Those front panels had value that was overlooked when the modern machines >were ushered in. I wouldn't say that! Some of the PS/2s, A popular WYSE 286 machine and so one have had LCD diagnostic panels ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

4
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front panels

by peacock＠simconv.com

Kai Kaltenbach wrote: >Other front panels... hmm. > >The Ithaca InterSystems DPS-1 had one. > I still have a DPS-1 in (mostly) good shape. Unlike the IMSAI flat toggle switches it had the triangular ones like DEC PDP-15s. Personally I preferred the IMSAI ones (memories of bloody fingers after toggling in a long binary on an Altair front panel with it's knife edged switches). The DPS-1 works but the motherboard connectors are shot...I got it from a plating/foundry company, covered with crud from the sufuric acid vats next to it. Now if anyone has a nice new pristine Morrow 20 slot motherboard to replace the "etched" one... The other nice feature of the DPS-1 was an o-scope trigger mode on the front panel, sort of a poor man's one channel logic analyzer. If I remember correctly, it also knew something about 24-bit addresses.

28 years, 1 month

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Computers that have appreciated (RE: Altair price check)

by kaikal＠MICROSOFT.com

> -----Original Message----- > From: Yowza! [SMTP:yowza@yowza.com] > Besides the Apple 1, does anybody know of a computer system that has > actually appreciated in value? :-) > I assume you mean machines that are worth more than their original purchase price. That would be a pretty short list... notably: - IMSAI 8080 (assuming a base system; a fully configured setup would have cost thousands) - MOSTech KIM-1 (it was so cheap originally it can hardly avoid appreciating since it's a significant historical piece) - Rockwell AIM-65 (ditto) - RCA COSMAC VIP (ditto) If we adjust 1970s dollars to today's rate, not even the Altairs go for more than the purchase price. That leaves only the Apple I in the appreciating column. The only other micro systems (besides the Altair 8800s & Apple I) that fetch significant money, but are nowhere near appreciating from original cost, are: - IBM 5100 - Altair 680 - Processor Technology SOL - Commodore PET (chiclet version) - Apple Lisa - Unproduced prototypes of Atari 8-bit or Commodore equipment Kai

28 years, 1 month

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Altair price check

by jfoust＠threedee.com

Regarding the three Altair machines that were recently posted to the net auction at ebay.com - they went from $1525 to $2025. Mind you, these weren't complete systems. The software, extra drives, etc. were auctioned separately. - John Jefferson Computer Museum <http://www.threedee.com/jcm>

28 years, 1 month

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front panels

by peacock＠simconv.com

On Mon, 23 Feb 1998, Sam Ismail Replied: >> I also had one homebrew S-100 with the Wameco front panel, which used hex >> displays for address and data but otherwise was identical to the IMSAI front >> panel. Does anyone remember other front panel S-100 cards besides MITS, >> IMSAI, Ithaca, and Wameco? Wasn't there a Byte-8 sold by Olson Electronics >> for a while that also had a front panel? >Yes, the Byte-8 had a front panel with, I believe, a hex keypad and a two >digit 7-segment LED display. Was that just a display driven from a boot ROM or was it a real front panel, with displays directly driven from the bus, examine/deposit, single step, etc.? Usually a hex keypad meant a simulated front panel (CPU actually running a debug program in the boot ROM). A true front panel needed 16 LEDs or 4 hex digits for address, 8 LEDs or 2 hex digits for data, and at least 8 status LEDs for bus signals (SINP, SOUT, MEMR, INTA, etc.). All the panels I have seen also had an extra 8 LED latched output port and sense switch input port. >From cad at Mon Feb 23 17:06:14 1998 From: cad at (Charles A. Davis) Date: Sun Feb 27 18:32:11 2005 Subject: front panels References: <61AC5C9A4B9CD11181A200805F57CD54D09C92(a)red-msg-44.dns.microsoft.com> Message-ID: <34F200E6.40C2(a)gamewood.net> And then there is the Astral 2000. Full front panel (16 address/data switches, 16 leds) and a 4 digit hex display also. Switches to 'load' address or data, run/step, int. etc. When the machine is running normaly, the hex display is used as a 'clock' This machine uses a MC6800 chip. Chuck -- ----------------------------------------------------------- He, who will not reason, is a bigot; William Drumond, he, who cannot, is a fool; Scottish writer and he, who dares not, is a slave. (1585-1649) While he that does, is a free man! Joseph P. 1955- ----------------------------------------------------------- (be sure to correct the return address when using 'reply') Chuck Davis / Sutherlin Industries FAX # (804) 799-0940 1973 Reeves Mill Road E-Mail -- cad(a)gamewood.net Sutherlin, Virginia 24594 Voice # (804) 799-5803

28 years, 1 month

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front panels

by kaikal＠MICROSOFT.com

>Yes, the Byte-8 had a front panel with, I believe, a hex keypad and a two >digit 7-segment LED display. The Byte Systems' BYT-8 didn't have a keypad or LED display, just 24 toggle switches and the usual binary LEDs. The front panel plugs directly into the backplane. > On Mon, 23 Feb 1998, Jack Peacock wrote: > Does anyone remember other front panel S-100 cards besides MITS, > IMSAI, Ithaca, and Wameco? Wasn't there a Byte-8 sold by Olson Electronics > for a while that also had a front panel? Other front panels... hmm. The Ithaca InterSystems DPS-1 had one. Somewhere kicking around I do have another "front panel" card that could hardly have been used as a literal front panel... I believe it was made by Jameco or somesuch. It's a full-and-a-half-length S-100 Z80 single board computer card (it's so long, it couldn't have fit in any case) with several segments of alpha display, and a 24- or 30-key keyboard-style keypad. Kai

28 years, 1 month

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Panasonic Exec. Partner information wanted

by Marty＠itgonline.com

I was just given a Panasonic Exec. Partner. It looks like a laptop on stearoids. It should have been called a lugtop. It has a red plasma display, full keyboard, twin 5 1/4" floppy drives and a built-in printer. It comes with a convenient folding handle that swings out of the way (so as to not destroy its sleek lines presumeably) and boots fine. Unfortunately no paper came with it so I'd appreciate any information on when this was marketed. It's PC DOS compatible so that dates it post 1981 at least. Marty Mintzell

28 years, 1 month

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KNOXM5 RSTS Rides Again!

by allisonp＠world.std.com

<From: "Daniel A. Seagraves" <DSEAGRAV(a)toad.xkl.com> <KL0: 176510 300 <<< What is that? real time clock or line time clock <DM0: 170500 440 DH0 DM is the DH mux and is 8lines <KB9:KB24 disabled - no DH0: controller You have to have 3 controllers for that many lines I believe and it only found one. <And wasn't DM0: a disk controller? Am I supposed to reset the CSRs to th Its that DH muxed serial line thing you looking for. you may have set CSRs though Tim S may know the specifics for U-bus. Allison

28 years, 1 month

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Modern Minimalism (Was: Future Computing Trends)

by jfoust＠threedee.com

Roger Ivie <IVIE(a)cc.usu.edu> wrote: >On the other hand, CP/M-68K is available from http://cdl.uta.edu/cpm/. >A lot of it is written in C; with some work, it can be modernized and >updated. What could be more retro than building the ability to port >CP/M to anything with a C compiler? Darn, I had this idea, too. I was going to port it to the Palm Pilot. I looked at the code, and discovered a few things that the owner of that page (Tim Olmstead) hadn't found. I think CP/M-68K was cross-compiled under Alcyon C on a VAX 11/780. (Alcyon also produced an OS called Regulus that was available for Smoke Signal Broadcasting's 68000 systems.) The source contains the name "Tom Saulpaugh", and a web search turned up a book "The JavaOS? Design and Architecture" he wrote. He's at Sun as the architect of JavaOS for Network Computers. Tom Mason also works at Sun, and he worked at DRI on CPM-86, Concurrent CPM-86, and CP/M-86+. Novell appears willing to release source, but Tim suspects that there's no one around willing to discover or document what's available - if anything. For example, the source to CBASIC should be around, but they haven't released it. - John Jefferson Computer Museum <http://www.threedee.com/jcm>

28 years, 1 month

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Found a decent use for a PC...

by allisonp＠world.std.com

<No, it's just something about REALLY LARGE frontpanel boxes that rules. <The KA-10 is plain awesome. It's not only a real good hack, but it's <the foundation of timesharing and the ARPAnet. I'll probably never see o <in action, so I'm amassing as much information as I can - maybe it can b I have and it's more than awesome. <re-built? Who knows, they used discrete components... Half the problem is finding one that is complete enough with minimim peripherals. The peripherals also eat power. just the cpu with a hack to use modern disks for power and space savings wouldn't be out of line. As to being discrete, the answer is mostly not completely. It's a hackable machine. <Of course, this is WAY out of my league, but if I keep docs around... You never know. Allison

28 years, 1 month

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BBC Model B - video help

by Philip.Belben＠powertech.co.uk

On the subject of BBC video problems, it occurs to me that the BBC micro does scrolling by moving the pointer to the start of the screen (under some conditions?). If you can get it to do this, and see how the display behaves, you may be able to determine easily if it's an addressing problem. Just a thought. Philip.

28 years, 1 month

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Prices & Rants(was: Future Computing Trends. Still is, I g

by maxeskin＠hotmail.com

>Oh, and as per a previous mail by someone that you had replied to with a >hotmail.com account (so this isn't at you directly, but I cannot find the >intermediate mail): Last I checked, Russians don't use dollars, they use >Rubles. I have a 1990 5 Ruble proof coin I purchased in East Berlin while I >was there in my collection. (25 years ago, most coins were cheaper than >computers -- now it's the other way around!) So I was making a statement >about the pitiful (IMHO) status of the American dollar, just to clear >things up. Not to go too much off topic, but I made the russia comment, because I was born in the USSR, and it is very apparent to me. They DO use rubles, but before they artificially deflated it (with a clone case :), the xchng rate was something like 5000 Rubles to a US Dollar. I was watching a Russian comedy program a few days ago, and they mentioned that Russia has more dollars than the US, discussing the aid US gives them :) Actually, dollars are pretty much common there now, with slightly greater value. ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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Altair price check

by adavie＠mad.scientist.com

And I was losing bidder in one on the net recently, consisting of an 8800a and two 8" drives. It went for $1800 A -----Original Message----- From: John Foust <jfoust(a)threedee.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Tuesday, February 24, 1998 2:34 AM Subject: Altair price check > >Regarding the three Altair machines that were recently posted >to the net auction at ebay.com - they went from $1525 to $2025. >Mind you, these weren't complete systems. The software, extra >drives, etc. were auctioned separately. > >- John >Jefferson Computer Museum <http://www.threedee.com/jcm> > >

28 years, 1 month

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dhgf

by rus_wallden＠bc.sympatico.ca

28 years, 1 month

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9370 is a dog! Was: Re: Re[2]: Firsts

by Philip.Belben＠powertech.co.uk

William Donzelli quoted me as having written: >> All 3090 models are indeed water machines. The 3090 was IBM's large >> mainframe of the late 1980s. > > Are you sure that there were not a few air cooled models towards the end? > I have an air-TCM from, I believe, a late 3090. I paid two bucks for it. > In hindsight, I should have purchased all of them in the chassis (25 or > 16, I do not remember offhand. OK. To be strictly accurate, all 3090 models of which I am aware are water cooled machines. I was a student when I worked at IBM - a year before going to university, and two summer vacations - after which I somewhat lost touch with them. My last job with IBM was in 1988, and not at the marketing location where I had worked before, but in a factory building cash dispensers. My last real knowledge of IBM was >from 1987, then. >> involved!) to replace the strange 400Hz thingies. And a little circuit >> to provide a 400Hz heartbeat if the machine uses this at all... > > This is probably the best solution. > > It probably does monitor the 400 Hz, and machine check if it goes away. > Remember, these machine monitor EVERYTHING (like the earthquake sensor in > some of them - give them a good kick and they will report a seismic > check). Ouch! But you may get away with providing a fake "ac good" signal, rather than ac for it to monitor. > The "Mill" was chopped up into smaller rooms - our room just happens not > to have mice power, but the one next door does. Strange - I shouldn't have thought it took much to power a mouse :-) Still, this means you shouldn't have much difficulty with the upgrade. Philip.

28 years, 1 month

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Timeline of the Micro

by groberts＠mitre.org

fyi, interesting time line of the microcomputer: "Chronology of Events in the History of Microcomputers" http://www1.islandnet.com/~kpolsson/comphist.htm - glenn +=========================================================+ | Glenn F. Roberts, Falls Church, VA | Comments are my own and not the opinion of my employer | groberts(a)mitre.org

28 years, 1 month

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RQDX3 problem?

by allisonp＠world.std.com

<Is it possible for a RQDX3 to be bad, and trash a RD53 (Yes, I know what <terrible drives they are) to the extent they can't be formated in a VS200 Yes and no. Yes I've had drives a VS2k would not touch but the drives were otherwise ok. The PDP-11 formatter would however format them. Most of the drives I have that the VS2k didn't like were formatted on my CP/M crate using a teltek card(oddball format) or the older PC mfm controllers. You could have an incorrect hookup, power problems or other things going on. Are the RD5x's powered from the same powersupply as the rest of the system (in the same box)? RQDX3s do fail though the failure modes can be vary varied as they have their own PDP-11/memory/eprom on board. If it passes self diagnostics it's a 98% safe bet, if it's self testable it's ok. That does mean there are parts that selftest cannot verify. <So my question is, am I just having very bad luck or is the controller m <problem? I think your suffering from a multitude of things and with an apparent lack of docs to reference too. Your trying to attack it was if it were a PC and it's not even close. Those drives generally don't fail that suddenly and my expereince is they are generally reliable. But when you start with a box of junk it's hard to get to a know working point. Me I have Q-bus PDP-11s that can boot faster and off a wider variety of devices so any testing is done that using good old RT-11. I also have a set of diags for that platform so testing things like disks, tapes and interfaces is doable either with diags or by using them. At some point I have know good boards and questionable seperated and can move the known good to the uvax. PDP-11 and uvax Qbus commonality can be handy. Allison

28 years, 1 month

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Copying TU-58's?

by healyzh＠ix.netcom.com

The person I've been getting a bunch of DEC stuff off of has a whole pile of TU-58 tapes that he would like to get transfered over to something he can read. I'm wondering if there is anyway I can attach the TU58 drive I've got for my PDP-11/44 to my MicroVAX II and copy these tapes for him. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | For Empire of the Petal Throne and Traveller Role Playing, | | see http://www.dragonfire.net/~healyzh/ | | For the collecting of Classic Computers with info on them. | | see http://www.dragonfire.net/~healyzh/museum.html |

28 years, 1 month

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Found a decent use for a PC...

by allisonp＠world.std.com

<I'd say it's not so much a matter of there being "no need for them" <(front panels), so much as the fact that machines are so fast any more <that I'm not sure how much use they'd be, especially with <multi-tasking operating systems. Before the address and data LEDs <stabilized with any useful information, it would be somewhere else. In some respects that is true even back then when instruction cycle time were in the 2-10uS bracket. You did get to see the average addresses that were freqently accessed. However, front pannels also posessed the ability to stop the cpu, and single step or single instruction advance it. A true front panel on a PC would have to be able to do that and that is no small trick considering the caches, Dram refresh and other dynamic timings. < -Bill Richman < http://incolor.inetnebr.com/bill_r < (Home of the COSMAC Elf Simulator!) Cosmac ELF sim? Humm, I still rin one of those chips for fun. Allison

28 years, 1 month

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HP 935

by adam＠merlin.net.au

Hi! Anyone know what a HP 935 is? I assume it to be a Hewlett Packard laptop of some sort, with an LCD display, but I don't know if it is MS-DOS, CPM/M, a full laptop or one of the Tandy Model 100 computers, or what. :( A mining company just offered me a pile of them (along with my choice of their old computers), but I figure I should know something about them before I make the journey. Thanks heaps, Adam.

28 years, 1 month

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RQDX3 problem?

by healyzh＠ix.netcom.com

Is it possible for a RQDX3 to be bad, and trash a RD53 (Yes, I know what terrible drives they are) to the extent they can't be formated in a VS2000? I'm still trying to get my VAXstation II/RC up and running, and I was trying to load it with a questionable tape today. I booted with a standalone backup tape and started reloading. I then proceeded to get a parity error, which I told it to ignore. It sat around for a couple of hours not doing much of anything, so I halted the system and unloaded the tape. Then later on today I went to load it from a known good system tape, only this time standalone backup wouldn't see the disk. Thinking the drive needed reformated I pulled it out, and put it in my VS2000, and when I go to format it I get the following. >>> t 70 KA410-A RDRXfmt VSfmt_QUE_unitno (0-2) ? 0 VSfmt_STS_Siz .?? VSfmt_RES_ERR #2 84 FAIL >>> I had formated this same drive in this same system early last week with no problem. I just hadn't had time until today to try loading it. This is the second Hard Drive that has quite working and I've been unable to format after placing it in this system. I have yet to actually get the system to work with a Hard Drive (although the standalone backup recognized the one earlier today). So my question is, am I just having very bad luck or is the controller my problem? Thanks, Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | For Empire of the Petal Throne and Traveller Role Playing, | | see http://www.dragonfire.net/~healyzh/ | | For the collecting of Classic Computers with info on them. | | see http://www.dragonfire.net/~healyzh/museum.html |

28 years, 1 month

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Counterpoint boxen

by adept＠mcs.com

I have two counterpoint unix boxen. I've had these things for years but have never got around to fixing them up. They both have the IO subsystem, but they are also both missing many parts. I was wondering if anyone has experience with these things and mebbe some documentation. I _do_ have an original 60M QIC of counterpoint unix that I could dupe if anyone is interested (although I haven't checked its reliability recently) Cheers, Dan

28 years, 1 month

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pong

by chrish＠knet.kootenay.net

sorry about that rus is the game still, avail. At 06:43 PM 22/02/98 -0800, you wrote: >where are you at dan i live in castlegar bc canada i will take it if it >doesent cost to much >At 12:22 PM 22/02/98 -0800, you wrote: >>any body want my coin op pong machine >> >> > > >

28 years, 1 month

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TRS-80 Model II

by lwalker＠mail.interlog.com

Well kids and kiddies I got it functioning. The int. fdd wasn't positioning the heads close enough to the disk to read them. Fired up the various OS -- TRSdos 2.0 A , TRSdos 4.2 , CP/M 2.25 and the apps. Scripsit, Profile+, Visicalc, several terminal programs and some CP/M apps. including MBasic and the C asm. Wheeee !! What fun !! BTW, it says has 64k . Don't know about that upgrade tho. Next step is to check out these HDD s. Thanks to all who contributed. ciao larry lwalkerN0spaM(a)interlog.com

28 years, 1 month

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pong

by chrish＠knet.kootenay.net

where are you at dan i live in castlegar bc canada i will take it if it doesent cost to much At 12:22 PM 22/02/98 -0800, you wrote: >any body want my coin op pong machine > >

28 years, 1 month

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Moving my Collection?

by chrish＠knet.kootenay.net

found a homepage for the last home computer ti ever produced it wascalled the ti 99/8 it can be seen at http://w3.gwis.com/~polivka/998.html At 10:01 AM 22/02/98 -0500, you wrote: >On Tue, 3 Jun 1997, Sam Ismail wrote: >> On a scarcely related note, has anyone ever seen (or does anyone have) a >> TI-99/4 (no "a")? >Andrew Gurudata has a page devoted entirely to the TI-99/4 at: > >http://www.vex.net/~guru/ti/ti994nota.htm > > >-------------------------------------- >Rich Polivka >Alternate e-mail: copguy(a)geocities.com or ti994a(a)technologist.com >TI Home Computer Page: http://w3.gwis.com/~polivka/994apg.html >My Ohio Police Pages: http://www.cop-spot.com/~OhioBlue >------------------------------------ > > >

28 years, 1 month

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NorthStar Advantage Question

by francois.auradon＠worldnet.att.net

MSX was a "standard" that allowed machines to share mostly BASIC source code, it was popular in Europe for about 3 tears then died. I don't know the involvement of MS in that atempted "standard" but since it was crappy from the start I would believe they originated it ;). I think it was followed by MSX2, it was enhanced to keep up with the increase in computing power. >So many Z-80 CP/M machines... were they compatible, to a reasonable >extent? (I heard that MS had some standard in Japan for the purpose >called MSX. More info on that?) ------------------------------------------------------------- Fran?ois Visit the Sanctuary at: http://home.att.net/~francois.auradon PS what's the deal with that hotmail stuff? >Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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Sunday Find

by jrkeys＠concentric.net

Found a complete HP 97 calculator today at Goodwill with leather case, manual, power supply, and some load instructions. May trade this one ?

28 years, 1 month

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Free Osborne OCC-1 (Found this post in misc.forsale.computers.other.systems)

by bill_r＠inetnebr.com

Found this post in misc.forsale.computers.other.systems. Thought I'd copy it here in case anyone was interested and hadn't seen it. I know nothing about the person or the systems. >From: dmanley(a)cdsnet.net (Darrel Manley) >Newsgroups: misc.forsale.computers.other.systems >Subject: Free antique computers! >Date: 22 Feb 1998 17:36:01 GMT >Organization: MegaNews! >Lines: 3 >Message-ID: <6cpnm1$9ma$6(a)news-02.meganews.com> >NNTP-Posting-Host: d01a852f.dip.cdsnet.net >Mime-Version: 1.0 >Content-Type: Text/Plain; charset=US-ASCII >X-Newsreader: WinVN 0.99.9 (Released Version) (16bit) >Xref: news.inetnebr.com misc.forsale.computers.other.systems:34283 > >2 Osbourne OCC-1 computers, modems installed, all documentation and software >included. You pay shipping. Otherwise - landfill! -Bill Richman bill_r(a)inetnebr.com http://incolor.inetnebr.com/bill_r (Home of the COSMAC Elf Simulator!)

28 years, 1 month

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Prices & Rants(was: Future Computing Trends. Still is, I gu

by maxeskin＠hotmail.com

>Uh, really? Last I knew, Aceropen was a division of Acer, which everything >I've seen is some of the nastiest junk in the world (read: worse than >Packard Bell)... I've had an Acer. It was nice, except very hard to open. It always jammed. >Just my $0.00002, Come ON, stop making fun of Russian money! Just because it's inflated doesn't mean it's worth less ;) >Roger Merchberger | If at first you don't succeed, >Owner, MerchWare | nuclear warhead disarmament should >zmerch(a)northernway.net | *not* be your first career choice. > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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pong

by rus_wallden＠bc.sympatico.ca

any body want my coin op pong machine

28 years, 1 month

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BBC Model B - video help

by adavie＠mad.scientist.com

This sounds about right. If I counted the number of characters before the repeat, couldn't I then identify the stuck line? Then, perhaps... I could go to the hardware? Am I making sense? A -----Original Message----- From: Allison J Parent <allisonp(a)world.std.com> To: Discussion re-collecting of classic computers <classiccmp(a)u.washington.edu> Date: Sunday, February 22, 1998 11:57 PM Subject: Re: BBC Model B - video help >Unlikely but possible. More likely is a memory address error. A stuck >address line will cause data to repeat 2*n times in the display memory.

28 years, 1 month

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RCA CDP 1802 & SC/MP parts

by jmg＠iac.net

Hey! I just landed pieces to an 1802 kit! I've got everything but the hex keypoad and power supply (though I'm sure +12, +5, -5 would do the trick). This is not one of those single board computers like the ELF-II, it's made up of several boards which connect to the main unit via ribbon cables. Here are descriptions of the boards: Primary board with 1802 labled "Infinite" Part Number UCE100001 dated 1976 This board has a rather large crystal which appears to run at 135khz (if I'm reading the markings right). A large blue 3000 MFD capacitor, some smaller disk .01 uf capacitors, and these chips: 4) RCA 701 CD4001AE 1) RCA 631 4049AE 2) 2606B (I think this is the 256 bytes of RAM) The board also has a two sided 36 connector per side edge card, which connects to nothing. Next to the 1802 is a red ribbon cable which attaches to another board containing four LED readouts and a singfle LED light (attached to the Q bit I suppose). Each LED (but the Q light) has F9368DC 7705 - one for each LED). The second board is listed as INFINITE 1976, UCE30004. On an unattached board are two LED's, four chips and a 24 pin socket (empty - I guess for a monitor ROM). This chips are: 2) RCA 701 CD4001AE 1) M1-0110-5 (7649) 1) MC14013CP (7438) The last unattached board contains three switches and three buttons, with a metal faceplate labeled UC 1800. The buttons are labeled Reset, Start/EF1, and Enter, the switched are labeled ON/OFF, STNDBY Power, and Load Mode. This board also has four chips: 3) MC14013CP (7438) 1) RCA 636 CD4011AE Both of the unattached boards connect to the primary board via a ribbon cable terminated by a 14 pin DIP; there are two 14 pin DIP sockets on the primary board. It's unclear which board should be plugged into which socket. I also snagged pices to an SC/MP kit, along with a bunch of DOCS and old COMPUTE newsletters dating from 1978 or so (WOW!). Also got a COSMAC Microprocessor Product Guide (think I could call up RCA and order any of the things listed therein????? - HA!), and an original RCA 1800 Users manual (WOW!), in almost pristine condition. As a kid I put together an ELF-II in 1980 (I was 12), so I have some familiararity with this line of processors (could never get over the gethi instruction yuck yuck yuck). Looks like I need to put together a hex keypad and P/S to get this up and running. Anyone have any ideas? Also, this things is missing the CDP 1861 video driver which my old ELF-II used to have - what's up with this? I wonder what happened to all those old late 70's kit manufacturers... I don't see any FAQs out on the net for those old ELF's, KIMS, SYMS, and AIMS. Oh well, relpies by the curious and knowledgeable would be most appriciated. Thanks! J. Maynard Gelinas

28 years, 1 month

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I got some more stuff! :-)

by rexstout＠ptld.uswest.net

Well, at the hamfest yesterday I got a VT220 terminal, an HP-IL/HP-IB converter(maybe now I can use my HP 2225B...), a Laser 128 with two monitors(broken Zenith and working Apple Monitor III) two disk drives(Apple Disk II and a clone) a box of Apple II cards(mostly printer cards), a Hayes Micromodem II(110/300bps switchable, Apple II card and a box that sits outside the computer), two huge 9600bps leased line modems(kinda useless, but they were free!), an IBM 3180 terminal keyboard(but no terminal...), and of course I couldn't leave without getting a battery for my TH-205 radio. Everything seems to work except the VT220 keyboard and the Zenith monitor, and I have no way of testing the modems but they ligth up when plugged in, and I'm hoping that the 3180 keyboard will work with my 3191... -JR http://members.tripod.com/~jrollins/index.html - Computers http://www.geocities.com/Area51/Lair/1681/ - Star Trek

28 years, 1 month

1
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Tandy/Radio Shack Model 12

by gpine＠popmail.mcs.net

I have a non-working Radio Shack Model 12 computer, some software, and some documentation that I would gladly give to someone who could use them. I don't think that the unit would be worth the cost of shipping as the computer is probably useful only for parts for someone who has one already. I know that one disk drive (it has two 8-inch drives) is bad. It was physically ruining diskettes by scraping off the coating in a ring toward the center of the diskette. In the process of inspecting the unit to check out the drives, I managed to break off a nub of glass near the CRT socket and the vacuum seal was broken. If someone wanted to fix this unit, he would need one good 8-inch, half height drive and a new CRT. So far as I know it has one good drive, a good motherboard, power supply, keyboard, and whatever other electronic boards as might exist (I don't remember). The computer was working at the time I finished it off mechanically except for the bad disk drive. I also have the Model 12 Owner's Manual and TRSDOS-II Reference Manual, a brand new copy of TRSDOS 2.0B Version 02.0B.00 from Radio Shack special orders dept., a copy of Pickles and Trout CP/M for the Model 12, and a copy of SuperCalc 2 with P&T CP/M. I also have a plastic dust cover for the Model 12. I live in the Chicago area. If anyone is interested in picking up the unit, send me an email, and we'll make arrangements. If someone wants the unit enough to pay the cost of packing and shipping via Mailboxes Etc., I'll check into costs, but I doubt that it would be a good investment. Let me know of any interest. Gerald

28 years, 1 month

2
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Found a decent use for a PC...

by dwalterm＠ix.netcom.com

At 02:11 AM 2/22/98 -0500, you wrote: >> <No, it's just something about REALLY LARGE frontpanel boxes that rules. >> <The KA-10 is plain awesome. > >Yes, frontpanels do. It is a shame that no computer has had one since the >1970s. There just is no need for them anymore. > >What was the last machine to have a switch register and lights? The oldest >I can think of is one of the HP1000s (help me with the model number!). HP1000s with front panels: 2114 2116 2108 2112 2109 2113 2111 2117 The 2117 was the last of the family. Its also known as the 21MX F series. The 2114 was the first. A huge 4K of Core memory... 2108 and 2112 were the original MX family 2109 and 2113 were the MX-E series 2111 and 2117 were the MX-F series. There were a few more flavors as well used in combination with instruments like the 2105A. Regards, Don

28 years, 1 month

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Future Computing Trends

by maxeskin＠hotmail.com

>Date: Sun, 22 Feb 1998 00:41:45 -0500 >Reply-To: classiccmp(a)u.washington.edu >From: Ward Donald Griffiths III <gram(a)cnct.com> >To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu> >Subject: Re: Future Computing Trends > >Max Eskin wrote: >> >> I agree wholeheartedly with all you say with one exception. I have a >> Pentium 75 overclocked to 100, 16MB ram. It runs Word 95 just fine, >> and ran it fine when it had 8MB. Visual Basic and IE4 (I don't use >> it regulary, Opera at www.operasoftware.com is much better: 1MB >> download!) >> work fine too. I can only imagine how Linux would run. But to put >> this in a classical context, I agree that old computers are still >> useful, but I so wish that they had better displays :) > >I defy _anybody_ to say that a "better" display would improve any >Big Five Software arcade games as they ran on the 128x48 monochrome >graphics of the TRS-80 1/3. And I defy anybody to find a better >batch of arcade games, unless you really want to see the blood from >kicked-in faces, a fetish I outgrew 25 or so years ago. >-- Who says I want it for arcades? I don't play games much anyway. Whatever happened to desktop publishing, CAD, photoediting? What mostly annoys me is how little I can fit on an 80X25 text mode screen compared to 1280X1024 resolution and small font. > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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Moving my Collection?

by polivka＠gwis.com

On Tue, 3 Jun 1997, Sam Ismail wrote: > On a scarcely related note, has anyone ever seen (or does anyone have) a > TI-99/4 (no "a")? Andrew Gurudata has a page devoted entirely to the TI-99/4 at: http://www.vex.net/~guru/ti/ti994nota.htm -------------------------------------- Rich Polivka Alternate e-mail: copguy(a)geocities.com or ti994a(a)technologist.com TI Home Computer Page: http://w3.gwis.com/~polivka/994apg.html My Ohio Police Pages: http://www.cop-spot.com/~OhioBlue ------------------------------------

28 years, 1 month

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Vector Graghics

by rigdonj＠intellistar.net

I went to a trift store and found an interesting looking 5 1/4" disk. It's copy righted to Vector Graphics and Digital Research and is labeled Vector 4 CP/M Version 1.0 Release 2. Does anyone know what it's for? Joe

28 years, 1 month

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OOPs AT&Ts

by SUPRDAVE＠aol.com

the 9533 i had was preloaded with os2 but now i'm running pcdos7 and win3.11 just fine. i trying to get a pcmcia nic to work but having problems. the nic worked in my thinkpad but i dont remember how i had my autoexec.bat and config.sys set up. i do not remember the memory inclusions and exclusions that need to be set up. david << What kind of networking problems are you having? Do you have the PCMCIA model? Some of them had a token ring card instead of PCMCIA. Obligatory 10-year-old-plus story: HSC also has a DG/One (I think they want $45 for it) and an odd-looking Morrow portable that wasn't in very good shape. I passed on both, so if anybody is looking for these things, check with these guys: http://www.halted.com/ -- Doug >>

28 years, 1 month

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Datanumerics DL8a

by adavie＠mad.scientist.com

I asked about this one a little while back. Nobody knows what it is, apparently. Datanumerics DL8A. It is 8080 based, comes in a 19" rack mount case, has 4k 600ns ram, 1 current loop (I think) port, and obviously a full front panel. I ended up paying about US$150 for the DL8A, a Compucolor 2, and a PET 2032 A log? Maybe, but I'm curious about the DL8A. If there's any interest, I'll place images on my website when it arrives. A.

28 years, 1 month

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OOPs AT&Ts

by SUPRDAVE＠aol.com

ah, the 9533! i bought two nonworking ones for $30 and fixed them both! i gave one to my brother that is still in warranty for two more months. these machines have 3 year warranty and some are still under warranty. Im having problems getting a nic to work, but a cute little machine nonetheless. i love the keyboard too. i have never seen the matching lcd though. david In a message dated 98-02-20 01:06:49 EST, you write: << > All PS/2 starts with 85aa-yyy, Not all of them. One of my favorite odd-ball computers is the IBM PS/2e (9533). It's a very small low-power desktop model with 4 PCMCIA slots. One of mine even has an external flat panel VGA display. Because of the low power consumption, I use one as my home LAN internet gateway. BTW, does anybody have an extra floppy and cable for one of these things? It uses a notebook floppy drive and a notebook-like cable (mylar?). >>

28 years, 1 month

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PCjr serial connector pin out

by jdemaa17＠calvin.edu

We are looking to convert a PCjr computer into a serial terminal emulator, and our limiting factor is finding how to adapting its serial connector to a DB-9. Has anyone done this? We do not want to spend money on this, this is a student project. I apoligize for butting into this list as I can't find how to subscribe, so please reply by personal email. Also, if anyone knows of a good dos program to use for this project, please let me know Jeff DeMaagd jdemaa17 !at! calvin.edu http://www.calvin.edu/~jdemaa17 64-bit Alpha Linux OS user.

28 years, 1 month

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NorthStar Advantage Question

by maxeskin＠hotmail.com

So many Z-80 CP/M machines... were they compatible, to a reasonable extent? (I heard that MS had some standard in Japan for the purpose called MSX. More info on that?) >To: "Discussion re-collecting of classic computers" <classiccmp(a)u.washington.edu> >Subject: Re: NorthStar Advantage Question > >Joe wrote: >> >> At 07:05 PM 2/20/98 -0500, you wrote: >> >I just bought a Northstar Advantage. >> >> Ok what's a NorthStar Advantade? > > >They started as Kentucky Fried Computers and were later forced to >change their name to North Star Computers....according to Stan >Veit. The Advantage was a 64k Z80A running at 4MHz. It had two >built-in floppy drives...ran CP/M. Late 70's I believe. > >Win > >-- >Win Heagy >wheagy(a)erols.com > ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

28 years, 1 month

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Modern Minimalism (Was: Future Computing Trends)

by higginbo＠netpath.net

At 02:46 PM 2/20/98 PST, you wrote: >and ran it fine when it had 8MB. Visual Basic and IE4 (I don't use >it regulary, Opera at www.operasoftware.com is much better: 1MB >download!) If you think that's cool, you need to check out what they are doing with QNX: http://www.qnx.com/iat/createdemo.html QNX is a very small micro-kernel OS that has the look of Windows 95, has builtin TCP/IP networking, a notepad, a few other little doodads, and to top it off, a fully functional HTML 3.2 compliant web browser. Also supports graphics modes up to 1024x768 in millions of colors. Okay, not amazing enough for you already? How about if I told you it all ran off a 1.44mb floppy disk? Hmmmm? :) Everyone owes to themselves to go grab this FREE (yes, FREE) OS and try it for themselves. -John Higginbotham- -limbo.netpath.net-

28 years, 1 month

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Vector Graghics

by allisonp＠world.std.com

<This is a CP/M master for a Vector Graphics Vector 4 CP/M machine. Was <the Vector 4 S-100 based btw anyone? < <Sam Alternate e-mail: dastar@sicon Yes it was. One of my s100 boxen is a Vector MX (s100 crate only none of the original boards). The MX was z80 powered byt the Vector 4 may have been 8088(cpm-86 V1). Allison

28 years, 1 month

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Vector Graghics

by allisonp＠world.std.com

<> > 4 CP/M Version 1.0 Release 2. Does anyone know what it's for? <> <Hard sector agrees with my information also. But I have a note <indicating that the Vector 4 was/is a CP/M-86 machine. Any other inputs < Don, I think your right. The CP/M Version1.0 Release 2 could only be cpm-86 as CP/M-80 would ahve been more likely 1.4 or 2.2. Allison

28 years, 1 month

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Seen on the Web : Does anyone need ConvexOS manuals?

by hansp＠columbia.digiweb.com

Chance for smoeone to save some documentation, and perhaps a machine... -- Hans B. Pufal : <mailto:hansp@digiweb.com> Comprehensive Computer Catalogue : <http://www.digiweb.com/~hansp/ccc/> _-_-__-___--_-____-_--_-_-____--_---_-_---_--__--_--_--____---_--_--__--_

28 years, 1 month

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I GOT ONE

by rus_wallden＠bc.sympatico.ca

THE ARCADE PONG NEED TO FIX IT THE SDREEN IS BLURRY

28 years, 1 month

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IBM docs.

by Philip.Belben＠powertech.co.uk

At the risk of reviving at least two discussions better left dead, I have dug out some more IBM documents. I have a 4361 marketing leaflet - the 4361 was the entry level 370 system between the withdrawal of the 4341/4321 and the introduction of the 9370. I have practically no technical info so it won't contribute to the debate on power requirements, but it was a self contained, air-cooled unit often described as looking like a chest freezer. I also have the following pocket reference cards/books. IBM System/34 Command and OCL Statements Reference Summary (9th edition, April 1983), 170 pages IBM System/34 COBOL Reference Summary (4th edition, January 1982), 90 pages IBM System/34 Assembler Reference Summary (3rd edition, July 1979), 26 pages IBM System/32 SCP Command Statement Reference Summary (6th edition, May 1980), 23 pages It seems I have a second copy of the Command and OCL statements and Cobol reference summaries. *** IF ONE OF YOU OUT THERE WITH A SYSTEM/34 NEEDS EITHER OF THESE I WILL SEND IT/THEM TO YOU *** I might also photocopy the Assembler reference if you ask nicely. If anyone out there has a System/32 I shall be so amazed I might even send you my only copy of the reference card. The instruction set of the System/34 looks CISC and 8-bit-ish, although it handled 16 bit and (I think) 32 bit data. Typical speed seems to have been 0.1 to 0.3 MIPS. Someone on this list some months ago described it as "a room-sized 8088" which is probably about right, performance-wise... Philip.

28 years, 1 month

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9370 is a dog! Was: Re: Re[2]: Firsts

by Philip.Belben＠powertech.co.uk

[Power Consumption of 3090] > Are these all water machines? There are some air-cooled versions that are > probably reasonable. All 3090 models are indeed water machines. The 3090 was IBM's large mainframe of the late 1980s. There were other 370-derived machines around at the time. In particular there was the 4300 series, of which the 4361 and 4381 remained at that time (I think if you tried to buy a 4321 or 4341 you got a 4361. The price was the same, anyway.) I cannot remember whether these were air or water cooled, but they were much less powerful than the 3090 >> These figures are not even for a minimum system - you have to add disk >> drives and that awful 400Hz motor generator set - which can consume up >> to 7kW in itself. > > Yes, the 400 Hz would be a problem, almost as much as a cooling system (if > one went with a water machine - probably too big of a headache). I wonder. I have never seen inside the PSU of any of these machines, but it seems to me that the outputs are all going to be low voltage dc at a few hundred amps - so conventional switching power supplies could be contrived (tho' probably not purchased new if there are tens of kW involved!) to replace the strange 400Hz thingies. And a little circuit to provide a 400Hz heartbeat if the machine uses this at all... >> So, as I said, a typical system based around, say, a model 200 might >> consume 50kW, but even that needn't cripple you financially. > > No. Around me, electricity is not very cheap - 11 cents/kWh - but running Much the same here. > a 50kW computer is not a financial burden if done in moderation. What > might be a burden is getting the service entrance of the house to a point > where it could handle 50kW nicely. Yes. Although the elctricity company may do a lot of the work free of charge if they think you're going to use a lot of the stuff. (My parents achieved this. They wanted to move the meter board, so the electrician doing the wiring told the electricity company, they're going to use so much electricity thy'll need 3-phase and there won't be room in the existing location. Result: new 3-phase connection and new meter board, all free of charge.) > I suppose that is the good thing about RCS/RI - we are in a factory, and > are looking to get real 3-phase installed! Nice. I'm surprised you don't have this already if you're in a factory. Here we have 240V (now officially 230V but I've not noticed any change) single phase up to around 20kW peak demand, 415V 3 phase (now officially 400V, ditto) up to a megawatt or so, 11kV 3 phase above that. Some factories have their own supply at 33kV or even higher. Philip.

28 years, 1 month

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